#mysql_real_escape_string
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like we made fun of PHP for having shit like mysql_escape_string and mysql_real_escape_string because mysql_escape_string had a horrible bug but they didn't want to remove it for compatibility reasons meanwhile C has the footguns and solutions of strcpy and strncpy and and printf and snprintf and vsnprintf.
At least PHP deprecated the mysql library and made a new one since PHP5!
#I spend too long staring at C trying to figure out what the fuck it means to like C#your language should come with a growable vector type built in!
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computer php funktion mysql_real_escape_string in c umsetzen 927
computer php funktion mysql_real_escape_string in c umsetzen 927 https://sirmark.de/computer/php-funktion-mysql_real_escape_string-in-c-umsetzen-927.html
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Download uSquare - Universal Responsive Wordpress Grid for Team Members, Logos, Portfolio, Products and More on Codecanyon
Description uSquare - Universal Responsive Wordpress Grid for Team Members, Logos, Portfolio, Products and More :
Download uSquare - Universal Responsive Wordpress Grid for Team Members, Logos, Portfolio, Products and More. The theme releases on Sunday 4th November 2012 By The author ShindiriStudio on Codecanyon. It’s uses with clean,dark,image display,logo display,modern,orange,product,responsive grid,team,team members,universal,windows 8,wordpress,wordpress product,wordpress team. Item Title: uSquare - Universal Responsive Wordpress Grid for Team Members, Logos, Portfolio, Products and More Category: wordpress/galleries Price: $30 Author: ShindiriStudio Published Date: Sunday 4th November 2012 01:41:15 PM More Info / DownloadDemo
uSquare 1.7.1 – Universal adaptive grid for Wordpress
uSquare is a wordpress responsive squared grid that can display your content in a unique and interesting way. You can use it for displaying team members, products, services, designs, blog posts or anything else that comes to your mind. In our live preview we have included 3 modifications of the original file in order for you to see how uSquare can serve your purpose.
While we developed uSquare responsive grid plugin we carefully thought about its responsive layout. We wanted to make sure that all elements are visible and accessible with all resolutions for responsive layout.
If you are wondering how backend looks like, and what options are available, and what you can customize, you can see it here.
Adaptive design
Compatible Browsers
Features:
Responsive design
Fully customizable
Scrollable content
Easing effects included
Intuitive design
Fully flexible
Custom width and height of items
Custom colors and backgrounds
Custom fonts (over 600 Google fonts)
Custom social icons
You can add unlimited number of items
You can add items automatically from existent post or from all posts from some category
You can easely change order of items (just drag&drop items)
You can even link an item (or just its image) to some other page, or make item image to be opened in Lightbox (bigger version of image will be shown)...
Credits to some of the amazing photos go to Anders Lönnfeldt
uSquare responsive grid plugin can easily be modified to suit your needs and to display any content that you want. It can easily find its purpose regardless of the topic that you website is about, sport, software, hardware, fashion, design, web and regardless of the layout that your website has, it can easily be clean and simple or it can be crowded with design elements.
If you have an idea about how we can make this plugin better, feel free to make a suggestion, we always tend to meet our users demands.
Customer Reviews
Change log
Version 1.7.1 – 16/05/2018
- Google fonts switched from http to https
Version 1.7 – 16/06/2016
- Added a 'Duplicate' function, so you can duplicate whole uSquare - new Google fonts list - new jQuery 1.12.4 - minor CSS fixes in backend
Version 1.6.9 – 05/05/2015
- Resolved issues: - Fixed a bug with the Google fonts - Removed mysql_real_escape_string (replaced with esc_sql function) - Updated Google Fonts list - Updated jQuery to the latest version
Version 1.6.8 – 15/10/2014
- Added 'alt' field for images (also used as a title for images in lightbox) - Now you can insert image URLs instead of uploading them - Fixed left position of grayscale image (bug with some specific templates) - Fixed mysql_real_escape_string warning (on some specific hosting servers) - Fixed bad encoding (bug with arabic letters with some specific conditions) - uSquare scripts will not be loaded in admin panel when you are not in uSquare editor (this made a conflict with some specific plugins/themes) - Updated jQuery and Google fonts list
Version 1.6.7 – 22/03/2014
- Resolved issues: - Fixed an minor backend bug - Upgraded to the latest jQuery - Upgraded to the latest Google font list
Version 1.6.6 – 06/01/2014
- Resolved issues: - Added option “Do not resize images”
Version 1.6.5 – 14/09/2013
- Resolved issues: - CSS fix to make plugin compatible with new “Twenty Thirteen” template - Added an option to include JS and CSS together with HTMK block, because some plugins cut off JS and CSS in head section
Version 1.6.4 – 23/08/2013
- Resolved issues: - Plugin had a problem with images when Jetpack plugin is installed on Wordpress. It is fixed now.
Version 1.6.3 – 12/08/2013
- Resolved issues: - Added support for new WP Media Library
Version 1.6.2 – 11/08/2013
- Resolved issues: - Updated jQuery to the latest version - Updated Lightbox to the latest version - Updated list of Google Fonts - Fixed PHP warnings for undefined variables/indexes when WordPress is in debug mode
Version 1.6.1 – 01/06/2013
- Resolved issues: - Just a little modification that prevent a browser from jumping to the top of the page when Close button is clicked
Version 1.6 – 06/04/2013
- Resolved issues: - Added an option to enable ‘separated jQuery’ in no-conflict mode, so it will not make a conflict with older jQuery used by older templates, plugin will run 100% on all templates - Added an option to prevent extended content from opening - Added an option to prevent items from going up when they’re clicked - Added an option to link both square and image - Added an option to cut height of scrollable content in order to add compatibility with old browsers - CSS fix for extended content in 440px resolution - Better organization options in backend panel
Version 1.5.3 – 24/03/2013
- Resolved issues: - Fixed a bug that sometimes caused the content text appearing outside of it’s own container on some screens with smaller resolutions
Version 1.5.2 – 12/03/2013
- Resolved issues: - Fixed bug that was showing the same image on all items in some specific situations - Fixed small bug with animation when option “Push content below” is active - Plugin now firstly checks if PHP function for grayscale is available
Version 1.5.1 – 10/03/2013
- Resolved issues: - Fixed small bug that blocked admin interface in Google Chrome and Internet Explorer
Version 1.5 – 08/03/2013
- Resolved issues: - Timthumb removed, due to a lot of problems experienced by our customers. We made our own functions for image resizing
Version 1.4.2 – 02/02/2013
- Resolved issues: - CSS margin fix for social icons - Better handling for Google Fonts styles (bold, italic…)
Version 1.4.1 – 31/01/2013
- Resolved issues: - Fix for right aligned image (grayscale bug) - Fix for short field in MySQL table - Lightbox fix (opening bigger image now)
Version 1.4 – 29/01/2013
- Resolved issues: - Added an option to choose Google Fonts for title, decsription, content, etc… - Added an option to choose the color of text (title, description, content…) - Added an option to edit ‘info:’ label - Added an option to choose whether the item will overlap the content below, or push it below itself - Removed the limit of possible items within a single uSquare instance - Styles and Scripts are now generated within the tag, which automatically reduces possible conflicts with other plugins - Grayscale now works in IE10
Version 1.3.3 – 02/12/2012
- Resolved issues: - Option to enable image link to be opened in new tab - Option to enable icons link to be opened in new tab - Support for old jQuery versions - Removing grayscale in Chrome now works - Minor bugs fixed
Version 1.3.2 – 29/11/2012
- Resolved issues: - Added icons for web page and email - Fixed image uploading issue on some wordpress versions - Fixed minor bugs
Version 1.3.1 – 21/11/2012
- Resolved issues: - Added an option to make image link available only if item is open - CSS rules are set better in order to prevent template rules overriding them - Support for UTF-8 charset has been added - New scrollbars – thus making jQuery-UI unnecessary (pages will load faster)
Version 1.3 – 15/11/2012
- Resolved issues: - Added an option to display images without grayscale filter - Fixed bug with uploading images - Fixed issue when Firefox does not show grayscale images (correct HTTP header for SVG files has been set) - Shortcodes now work fine in PHP scripts
Version 1.2 – 13/11/2012
- Resolved issues: - Fixed a problem with responsive functions, widget is now responsive in all resolutions - Added an option to upload custom icons (social icons, etc…) - Added an option to put a link over images, so it can link to lightbox or anything else - Automatic check for updates availability – user will be notified if there is a newer version of the plugin - Option to enable the latest jQuery library if there is an older one - Some minor changes and bug fixes
Version 1.1 – 07/11/2012
- Added the ability to add from post - Added the ability to add from category - Fixed some minor bugs
Credits
All images used in the preview are only for demo purposes. All the images are copyrighted and licensed to their respective authors and owners.
More Info / DownloadDemo #uSquare #Universal #Responsive #Wordpress #Grid #Team #Members #Logos #Portfolio #Products
#All_Code_amp_plugin#clean#Code_amp_plugin_New_releases#dark#image_display#logo_display#modern#New_releases#orange#plugin#product#responsive_grid#team#team_members#universal#windows_8#wordpress#Wordpress_New_releases#Wordpress_plugin#wordpress_product#wordpress_team
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As far as I remember, a the original facebook codebase was PHP and some parts still run on a -- granted -- heavily modified PHP core today. (Compiled, no less!)
(Also ... mysql_real_escape_string() ... damn, that takes me back.)
There’s production PHP code running at every major company you can think of, I’m pretty sure. Some of it will run for another long while. Then again, there’s also a lot of production COBOL running, so that shouldn’t come as a big surprise.
I’ve never done much in PHP myself, but I know a lot of people who earn their money with it, yes, today. Javascript has mostly taken over by now in web development, but let’s be real here, that’s not much of relief.
This might sound nihilist, but although virtually every modern language is better than PHP, none is perfect either. And I dare say there will never be a perfect language.
But back to the original claim: software isn’t a meritocracy. In full generality, that’s trivially true. What would be interesting to me, however, is whether it’s at least subtly more meritocratic than other industries. Have you ever worked outside of tech, @eightyonekilograms? (I haven’t really ... I’m farther removed from it than I ever was right now, but still pretty close.) Bad tools rising to dominance because of availability instead of merit seems like something that would happen in a lot of fields everywhere.
Software is not only not a meritocracy, in some areas it’s almost a perfect anti-meritocracy. Programming languages are the classic example: historically there’s almost a perfect anticorrelation between how good a language is and how popular it is. There are good reasons for this, but it makes a mockery of the claim by certain folks that software is a meritocracy and so therefore we should stop trying to X, Y or Z.
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Fungsi String PHP 7 - Strrev, strlen, implode, trim
Fungsi String PHP 7 – Strrev, strlen, implode, trim
Tutorial fungsi string PHP, string adalah kumpulan karakter. kita belajar tentang fungsi-fungsi string PHP paling berguna. Kami akan mengembangkan situs web apa pun menggunakan PHP pada saat itu kami perlu membutuhkan fungsi PHP dasar. Fungsi string PHP ini sangat mudah dan bermanfaat.
10+ Fungsi String Terbaik di PHP
PHP memiliki beberapa fungsi string bawaan. 10+ fungsi string teratas di PHP:
P…
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#contoh fungsi string php#fungsi manipulasi string php#fungsi mysql_real_escape_string php#fungsi string dalam php#fungsi string di php#fungsi string pada php#fungsi string php#fungsi string php adalah#fungsi string php lengkap#macam macam fungsi string php
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Natas: Level 27
In level 27 we are given a login form. When attempting to login with any random username and password, we are told that we have created a new user.
Logging in as that same user again gives us
Looking through the code, we see that we have a database with a ‘users’ table. If the username entered is not already in the table, then a new user is created and added to the database.
If the username is in the database, but the supplied password is incorrect, then we’ll be told that we have the wrong password.
If both the username and password are correct, then all the information about the user will be displayed (like in the above image).
Similary to the previous challenges involving a SQL database, there is a user named natas28 (the name of the next level) whose password we want to find.
Since we know that natas28 is a user, maybe we can try exploit the function ‘checkCredentials’.
However it looks as though mysql_real_escape_string is being used to sanitise our user input. In order to carry out a successful SQL injection, we will need to find a way to bypass it.
After a lot of digging, it seems that this isn’t the correct path to take. Since the user input is both passed through mysql_real_escape, and is surrounded by single quotes, it’s extremely difficult inject additional SQL commands.
So there must be another way in which to get the password. But the only method I can think of is to get another user into the database with username natas28. This would result in the real natas28′s password being returned when logging in as the ‘fake’ user.
How do we even get user with the same name into the database? Well we notice that in the table, the username and password are defined as type varchar(64). This means that these fields have a maximum length of 64 (even less because 1 or more byte is usually used to store the size of the string), and anything over this maximum will be truncated. From playing around with the login form, we also notice that trailing spaces are ignored when querying the database.
Using this information, we can attempt to overload the maximum length of the username to enter another ‘natas28′ into the table.
First we login with the credentials:
username = natas28 <approx. 60 spaces> <any character>
password = <anything>
validUser will fail as there is no user that matches the provided username (this wouldn’t be the case if we hadn’t added a random character at the end of our username).
The new user will be added to the table, but since the length of the username is greater than 64, the name of the user in the table will be ‘natas28′ followed by spaces.
We can now login using the username ‘natas28′ and the password for the user we just created.
Doing so causes the data for the user ‘natas28′ to be dumped, delivering us the flag.
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Top 10 PHP Tips for Developers
I have for the longest time been itching to compose an article this way, since I consider everything the time - what 10 things would I regard the most critical to pass on to another person?
1) Go OOP
On the off chance that you have not yet entered the domain of Object Oriented Programming, at that point you are off guard, and you are falling behind quick.
OOP is basically a technique for programming with the utilization of classes, or Objects, which entwine like things, evacuate the requirement for reiteration of code and play out the fundamental errands of generation just.
2) Stay Away from Anything Ending With _once()
We as a whole realize that incorporate() essentially gives us a notice on the off chance that it comes up short, while require() murders the content with a deadly mistake when it falls flat.
What we keep in mind is that include_once() and require_once() is to a great degree hard on server assets. There is nothing we can do about it, it's the way PHP is set up.
3) Develop With Error Reporting On
The main thing you do when beginning another task is to turn mistake answering to E_ALL, and you should just turn it off ten seconds previously going to generation mode
4) Use A Framework If You Need One
Ok, so you shouldn't use a framework because he could quite conclusively prove that a framework is much slower than normal PHP code when it came to printing a simple "Hello World" application.
Two things to mention here though: you are not Rasmus Lerdorf and I bet you won't be building a "Hello World" application every time you program something.
5) Use PHP's Inbuilt Functions
Ok, you want to count the amount of keys in an array? You can loop through the array and simply increment a value for each iteration, right. PHP has many built-in functions that can do what you need them to, so check out the manual to make sure you are doing it in the best way possible.
6) Protect Your Database
The best and safest way is to use mysql_real_escape_string() for all database before it is added to the database. This function makes all strings safe in terms of quotes and other functions that can harm your database or contain malicious code, so use it to be sure you have taken the first step against protection of your data
7) Use POST Not GET
Ok, this isn't always possible, but when its really not necessary, don't use GET, use POST. The reason is simple - GET is simple to emulate, all I need to do is add something to my address bar and I can hack your project.
8) Draw Before You Code
A good practice to get into is to wireframe your projects, even if you are just scribbling a few notes on a piece of paper. It is very important to actually give the mechanics of you application some thought before sitting down to start coding.
9) Understand Your Project
A craftsman can't draw something that he has not seen some time recently. An artist can't sing a tune that he has not heard some time recently. You can't code an undertaking that you don't completely get it. On the off chance that you don't see precisely what it needs to do, and how it needs to it, you can't manufacture it.
10) Code
On the off chance that I could make them thing through to anybody perusing this, this is it. You can't turn into a decent engineer by perusing. You can't turn into a decent engineer by watching somebody create.
The unrivaled attempted and confided in strategy, is to really compose code. Be that as it may, - and here is the trap - fabricate genuine articles! Try not to go and code something that you have no enthusiasm for, or will never utilize. Assemble what you like, and you will be energized and intrigued by it, and you will learn. At that point, make it magnificent, expand upon it, and improve it.
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agosto 9/17
PROYECTO DE AULA
Utilizar PHP
¶
Esta sección reúne varios errores comunes a los que se puede enfrentar mientras se escriben scripts de PHP.
No puedo recordar el orden de los parámetros de las funciones de PHP, ¿son aleatorios?
Me gustaría escribir un script genérico en PHP que pueda manejar datos provenientes de cualquier formulario. ¿Cómo puedo saber qué variables del método POST están disponibles?
Necesito convertir todas las comillas simples (') en barras invertidas seguidas de comillas simples (\'). ¿Cómo puedo hacer esto con expresiones regulares? También me gustaría convertir " en \" y \ en \\.
Todas mis " se convirtieron en \" y mis ' en \', ¿cómo puedo deshacerme de todas esas barras no deseadas? ¿Cómo y por qué están ahí?
¿Cómo me afecta la directiva register_globals de PHP?
Cuando hago lo siguiente, la salida se muestra en el orden equivocado: <?php function mi_función($argumento) { echo $argumento + 10; } $variable = 10; echo "mi_función($variable) = " . mi_función($variable); ?> ¿Qué está pasando?
¡Eh!, ¿qué les pasa a mis nuevas líneas? <pre> <?php echo "Esto debería ser la primer línea."; ?> <?php echo "Esto debería mostrarse después de la línea anterior."; ?> </pre>
Recibo el mensaje 'Warning: Cannot send session cookie - headers already sent...' o 'Cannot add header information - headers already sent...'.
Necesito acceder directamente a información de las cabeceras de una petición. ¿Cómo puedo hacerlo?
Cuando intento usar la autenticación con IIS obtengo el mensaje 'No Input file specified'.
Windows: No puedo acceder a ficheros compartidos en otra computadora usando IIS
¿Cómo se supone que mezclo XML y PHP? ¡A este no le gustan mis etiquetas <?xml!
¿Dónde puedo encontrar un listado completo de las variables disponibles de PHP?
¿Cómo puedo generar ficheros PDF sin usar bibliotecas no gratuitas o comerciales como PDFLib? Me gustaría algo que sea gratis y no requiera bibliotecas de PDF externas.
Estoy intentando acceder a una de las variables estándar de CGI (como $DOCUMENT_ROOT o $HTTP_REFERER) en una función definida por el usuario, y parece que no puede encontrarla. ¿Qué está mal?
Algunas directivas de PHP pueden también tomar una abreviatura de valores de bytes, en lugar de solo valores de bytes integer. ¿Cuáles son todas las opciones de abreviaturas de bytes disponibles?
Windows: Mis conexiones caducan al utilizar localhost, mientras que "127.0.0.1" funciona.
No puedo recordar el orden de los parámetros de las funciones de PHP, ¿son aleatorios?
PHP es un pegamento que une cientos de bibliotecas externas y esto, a veces, lo complica. Por eso, una simple regla de oro es la siguiente:
Los parámetros de las funciones de Array están ordenados como "aguja, pajar", mientras que sucede lo contrario con las funciones de String, esto es, "pajar, aguja".
Me gustaría escribir un script genérico en PHP que pueda manejar datos provenientes de cualquier formulario. ¿Cómo puedo saber qué variables del método POST están disponibles?
PHP ofrece muchas variables predefinidas, como la variable superglobal $_POST. Se puede recorrer la variable $_POST, ya que es un array asociativo con todos los valores provenientes de POST. Por ejemplo, vamos a recorrerla simplemente con foreach, comprobar los valores vacíos, empty(), y mostrarlos todos.
<?php $vacío = $post = array(); foreach ($_POST as $nombre_variable => $nombre_valor) { if (empty($nombre_valor)) { $vacío[$nombre_variable] = $nombre_valor; } else { $post[$nombre_variable] = $nombre_valor; } } print "<pre>"; if (empty($vacío)) { print "Ninguno de los valores de POST esta vacío, se envió:\n"; var_dump($post); } else { print "Tenemos " . count($vacío) . " valores vacíos\n"; print "Registrados:\n"; var_dump($post); print "Vacíos:\n"; var_dump($vacío); exit; } ?>
Necesito convertir todas las comillas simples (') en barras invertidas seguidas de comillas simples (\'). ¿Cómo puedo hacer esto con expresiones regulares? También me gustaría convertir " en \" y \ en \\.
Asumiendo que esto es para una base de datos, utilice el mecanismo de escape que viene con esta. Por ejemplo, emplee la función mysql_real_escape_string() con MYSQL ypg_escape_string() con PostgreSQL. Existen también las funciones genéricas addslashes()y stripslashes(), las cuales son más comunes en código PHP antiguo.
Nota: Sobre de la directiva: magic_quotes_gpc
La directiva de PHP magic_quotes_gpc tiene por defecto el valor on. Básicamente ejecuta addslashes() en los datos obtenidos por GET, POST, y COOKIE. Se puede usar stripslashes() para quitarlos.
Todas mis " se convirtieron en \" y mis ' en \', ¿cómo puedo deshacerme de todas esas barras no deseadas? ¿Cómo y por qué están ahí?
Lo más probable es que esas barras invertidas existan porque la directiva de PHPmagic_quotes_gpc está activada. Esta es una característica antigua de PHP que debería deshabilitarse y no usarse más. También se puede utilizar la función stripslashes() para eliminar las barras invertidas de un string.
Nota: Sobre de la directiva: magic_quotes_gpc
La directiva de PHP magic_quotes_gpc tiene por defecto el valor on. Básicamente ejecuta addslashes() en los datos obtenidos por GET, POST, y COOKIE. Se puede usar stripslashes() para quitarlos.
¿Cómo me afecta la directiva register_globals de PHP?Advertencia
Esta característica ha sido declarada OBSOLETA desde PHP 5.3.0 y ELIMINADA a partir de PHP 5.4.0.
En primer lugar, una explicación de lo que hace este ajuste ini. Digamos que se está utilizando el siguiente URL: http://example.com/foo.php?animal=cat y en el fichero foo.php tuviéramos el siguiente código PHP:
<?php // Aquí es preferible usar $_GET echo $_GET['animal']; // Para que $animal exista, register_globlas debe estar activado // NO HAGA ESTO echo $animal; // Esto se aplica a todas las variables, inclusve a $_SERVER echo $_SERVER['PHP_SELF']; // De nuevo, para que $PHP_SELF exista, register_globals debe estar activado // NO HAGA ESTO echo $PHP_SELF; ?>
El código anterior demuestra cómo register_globals crea muchas variables. Durante años, este tipo de código ha sido mal visto, y durante años ha estado deshabilitado por defecto. Así que, aunque la mayoría de alojamientos web deshabilitan register_globals, aun existen artículos, tutoriales y libros desactualizados que requieren que esté habilitado. Actúe en consecuencia.
Véase también los siguientes recursos para más información:
La directiva register_globals
El capítulo de seguridad acerca de register globals
Manejo de variables externas
Usar superglobals en su lugar
Nota:
En el ejemplo anterior, usamos un URL que contenía un QUERY_STRING. El paso de información como esta se hace a través de una solicitud GET de HTTP, y es esta la razón por la que se usa la superglobal $_GET.
Cuando hago lo siguiente, la salida se muestra en el orden equivocado:
<?php function mi_función($argumento) { echo $argumento + 10; } $variable = 10; echo "mi_función($variable) = " . mi_función($variable); ?>
¿Qué está pasando?
Para poder usar los resultados de funciones en una expresión (como la concatenación con otras cadenas del ejemplo anterior), es necesario devolver el valor con return; no utilzar echo.
¡Eh!, ¿qué les pasa a mis nuevas líneas?
<pre> <?php echo "Esto debería ser la primer línea."; ?> <?php echo "Esto debería mostrarse después de la línea anterior."; ?> </pre>
En PHP, la terminación de un bloque de código se realiza bien con "?>" o con "?>\n" (donde \n significa una nueva línea). Con el ejemplo anterior, las sentencias de 'echo' estarán en una línea debido a que PHP omite las nuevas líneas después del final de un bloque. Esto significa que es necesario agregar una nueva línea extra después de cada bloque de código PHP para poder imprimir una nueva línea.
¿Por qué PHP hace esto? Porque cuando se formatea HTML normal, esto hace la vida más fácil ya que normalmente no se desea esa nueva línea, pero se tendrían que crear líneas extremadamente largas o, de lo contrario, hacer el código fuente de la pagina ilegible para obtener tal efecto.
Recibo el mensaje 'Warning: Cannot send session cookie - headers already sent...' o 'Cannot add header information - headers already sent...'.
Las funciones header(), setcookie(), y las funciones de sesión necesitan agregar cabeceras al flujo de salida, pero las cabeceras solo pueden enviarse antes de cualquier otro contenido. No puede haber ninguna salida antes de usar esas funciones, salidas como HTML. La función headers_sent() comprobará si un script ya ha enviado las cabeceras. Véase también las funciones de control de salida.
Necesito acceder directamente a información de las cabeceras de una petición. ¿Cómo puedo hacerlo?
La función getallheaders() lo hará si se está ejecutando PHP como un módulo de Apache. El siguiente trozo de código mostrará todas las cabeceras de la petición:
<?php $cabeceras = getallheaders(); foreach ($cabeceras as $nombre => $contenido) { echo "headers[$nombre] = $contenido<br />\n"; } ?>
Véae también apache_lookup_uri(), apache_response_headers(), y fsockopen()
Cuando intento usar la autenticación con IIS obtengo el mensaje 'No Input file specified'.
El modelo de seguridad de IIS es el culpable en este caso. Es un problema común a todos los programas CGI que se ejecutan bajo IIS. Una solución es crear un fichero de HTML plano (no analizado por PHP) como la página de entrada en un directorio autenticado. Se debe utilizar entonces una etiqueta META para redirigir a la página de PHP, o tener un enlace a dicha página. PHP reconocerá así la autenticación correctamente. Con el módulo ISAPI, esto no es un problema. Esto no debería afectar a otros servidores web NT. Para más información, véase: » http://support.microsoft.com/kb/q160422/ y la sección del manual sobre Autenticación HTTP .
Windows: No puedo acceder a ficheros compartidos en otra computadora usando IIS
Ha de cambiar Ir a los Servicios de Información de Internet. Localice su fichero PHP y vaya a sus propiedades. Luego vaya a la pestaña Seguridad de Archivos, Editar -< Acceso anónimo y control de autenticación.
Se puede corregir el problema ya sea desmarcando Acceso anónimo y dejando Autenticación integrada de Windows marcado, o marcando Acceso anónimo y editando el usuario, que ya no tendría que tener derecho de acceso.
¿Cómo se supone que mezclo XML y PHP? ¡A este no le gustan mis etiquetas <?xml!
Con el fin de integrar directamente <?xml en código de PHP, se han de desactivar las etiquetas abreviadas estableciendo la directiva de PHP short_open_tags a 0. Esta directiva no se puede establecer con ini_set(). Independientemente de queshort_open_tags esté activada o no, se puede hacer algo como: <?php echo '<?xml'; ?>. El valor predeterminado de esta directiva es On.
¿Dónde puedo encontrar un listado completo de las variables disponibles de PHP?
Lea la página del manual sobre variables predefinidas, que incluye un listado parcial de variables predefinidas disponibles para su script. Se pude ver un listado completo de las variables disponibles (y mucha mas información) llamando a la función phpinfo(). Asegúrese de leer la sección del manual sobre variables desde fuentes externas a PHP, la cual describe escenarios comunes para variables externas, como desde un formulario HTML, una cookie, y un URL.
Nota: register_globals: Observación importante
Desde PHP 4.2.0, el valor por defecto de la directiva register_globals es off. La comunidad de PHP desaconseja el uso de esta directiva y sugiere el uso de otras formas como superglobals.
¿Cómo puedo generar ficheros PDF sin usar bibliotecas no gratuitas o comerciales como
PDFLib
? Me gustaría algo que sea gratis y no requiera bibliotecas de PDF externas.
Hay algunas alternativas escritas en PHP como » FPDF y » TCPDF.
También esta la extensión Haru que utiliza la biblioteca externa libHaru gratuita.
Estoy intentando acceder a una de las variables estándar de CGI (como $DOCUMENT_ROOT o$HTTP_REFERER) en una función definida por el usuario, y parece que no puede encontrarla. ¿Qué está mal?
Es importante saber que la directiva de PHP register_globals también afecta a variables de servidor y de entorno. Cuando register_globals = off (el valor por defecto desde PHP 4.2.0), $DOCUMENT_ROOT no existirá. En su lugar, se debe usar $_SERVER['DOCUMENT_ROOT']. Si register_globals = on, las variables $DOCUMENT_ROOT y $GLOBALS['DOCUMENT_ROOT']también existirán.
Si se está seguro de que register_globals = on y se pregunta por qué $DOCUMENT_ROOT no está disponible dentro de las funciones, es porque son como las demás variables, requiriendo dentro de la función global $DOCUMENT_ROOT. Véase también la página del manual sobre ámbito de las variables. Es preferible codificar con register_globals = off.
Algunas directivas de PHP pueden también tomar una abreviatura de valores de bytes, en lugar de solo valores de bytes
integer
. ¿Cuáles son todas las opciones de abreviaturas de bytes disponibles?
Las opciones disponibles son K (para Kilobytes), M (para Megabytes) y G (para Gigabytes; disponible desde PHP 5.1.0). Ninguna considera las mayúsculas/minúsculas. Cualquier otra cosa asume bytes. 1M es igual a un Megabyte o 1048576 bytes. 1K es igual a un Kilobyte o 1024 bytes. Estas notaciones abreviadas pueden utlizarse en php.ini y en la función ini_set().
Nota: kilobyte contra kibibyte
La notación de PHP describe que un kilobyte equivale a 1024 bytes, mientras que el estándar IEC considera que debe ser un kibibyte. Resumiendo: k y K = 1024 bytes.
Windows: Mis conexiones caducan al utilizar localhost, mientras que "127.0.0.1" funciona.
Antes de PHP 5.3.4, existía un error en el código de resolución de red dentro de PHP que ocasionaba que localhost fallase en todas las situaciones relacionadas con flujos si IPv6 estaba habilitado. Para solucionar este problema se puede usar tanto "127.0.0.1" como deshabilitar la resolución de IPv6 en el fichero hosts.
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User Contributed Notes 6 notes
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info at zankmusic dot com
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8 years ago
Just spent a couple days on this one... As previously posted, if you set upload_max_filesize = 0.25M, the value reads correctly in phpinfo(), BUT it is effectively ZERO when implemented. Note that the following also give ZERO bytes: upload_max_filesize = 10M (note the two white spaces before 10M), but the phpinfo() reads '10M' and everything looks ok. I removed all white spaces in my php.ini file and viola...working fine again.
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kjn
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10 years ago
64.16 Byte Values The number that precedes K, M, or G should be an integer. E.g. this php.ini directive: post_max_size = 0.25M is interpreted as 0, and thus prevents all POSTs. It is particularly unhelpful that phpinfo() reports the string value assigned to post_max_size (0.25M), and not the numerical value that PHP extracts from that string (0M).
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0robjbrain at gmail dot com
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10 months ago
There is no error message given if you accidentally use KB, MB or GB instead of K, M or G. From what I can tell the alphabetic characters will be ignored and it will be treated as bytes, so 1GB actually equals 1 Byte. phpinfo() and ini_get() will report what you have written e.g. 1GB, so it will not be clear that there is anything wrong with your setting even though there is.
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forlfa at aol dot com
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1 year ago
/*Array function parameters are ordered as "needle, haystack" whereas String functions are the opposite, so "haystack, needle".*/ I'm putting that at the top of every .php file I own.
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thierrybo
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2 years ago
Using php 5.4.27 memory_limit = -1 does not give unlimited memory but actually 10485760 bytes (or 10M)
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greenie2600 at yahoo dot com
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9 years ago
Here's a simple function that will convert the shorthand values described in point 64.16 to a number of bytes. I use this to display the maximum size of file uploads to the user, so they don't waste time uploading a huge file only to find that it's too big. (I've been unable to find any browsers that actually support the MAX_FILE_SIZE technique described in chapter 38, and it's certainly not part of any W3C spec, so this is the next best thing.) Here's how you'd use my function for that purpose (though you might want to abstract this to a function of its own): <?php echo 'Maximum file size: ' . convertBytes( ini_get( 'upload_max_filesize' ) ) / 1048576 . 'MB'; ?> And here's the function: <?php /** * Convert a shorthand byte value from a PHP configuration directive to an integer value * @param string $value * @return int */ function convertBytes( $value ) { if ( is_numeric( $value ) ) { return $value; } else { $value_length = strlen( $value ); $qty = substr( $value, 0, $value_length - 1 ); $unit = strtolower( substr( $value, $value_length - 1 ) ); switch ( $unit ) { case 'k': $qty *= 1024; break; case 'm': $qty *= 1048576; break; case 'g': $qty *= 1073741824; break; } return $qty; } } ?>
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PHP interview questions and Openings for freshers
PHP interview questions and answers for freshers
Welcome !!!. In this section we are providing you some frequently asked PHP Interview Questions which will help you to win interview session easily. Candidates must read this section,Then by heart the questions and answers. Also, review sample answers and advice on how to answer these typical interview questions. PHP is an important part of the web world, and every web developer should have the basic knowledge in PHP.Common PHP interview questions, which should help you become a best PHP codder. We hope you find these questions useful. If you are an interviewer, Take the time to read the common interview questions you will most likely be asked.
For more information about placement and interviews visit us at - https://www.datacouncil.in/
or Walk in to our institute at karvenagar, Pune.
What is PHP?PHP is a server side scripting language commonly used for web applications. PHP has many frameworks and cms for creating websites.Even a non technical person can cretae sites using its CMS.WordPress,osCommerce are the famus CMS of php.It is also an object oriented programming language like java,C-sharp etc.It is very eazy for learning
What is the use of "echo" in php?It is used to print a data in the webpage, Example: , The following code print the text in the webpage
How to include a file to a php page?We can include a file using "include() " or "require()" function with file path as its parameter.
What's the difference between include and require?If the file is not found by require(), it will cause a fatal error and halt the execution of the script. If the file is not found by include(), a warning will be issued, but execution will continue.
require_once(), require(), include().What is difference between them?require() includes and evaluates a specific file, while require_once() does that only if it has not been included before (on the same page). So, require_once() is recommended to use when you want to include a file where you have a lot of functions for example. This way you make sure you don't include the file more times and you will not get the "function re-declared" error.
Differences between GET and POST methods ?We can send 1024 bytes using GET method but POST method can transfer large amount of data and POST is the secure method than GET method .
How to declare an array in php?Eg : var $arr = array('apple', 'grape', 'lemon');
What is the use of 'print' in php?This is not actually a real function, It is a language construct. So you can use with out parentheses with its argument list. Example print('PHP Interview questions'); print 'Job Interview ');
What is use of in_array() function in php ?in_array used to checks if a value exists in an array
What is use of count() function in php ?count() is used to count all elements in an array, or something in an object
What's the difference between include and require?It's how they handle failures. If the file is not found by require(), it will cause a fatal error and halt the execution of the script. If the file is not found by include(), a warning will be issued, but execution will continue.
What is the difference between Session and Cookie?The main difference between sessions and cookies is that sessions are stored on the server, and cookies are stored on the user's computers in the text file format. Cookies can't hold multiple variable while session can hold multiple variables..We can set expiry for a cookie,The session only remains active as long as the browser is open.Users do not have access to the data you stored in Session,Since it is stored in the server.Session is mainly used for login/logout purpose while cookies using for user activity tracking
How to set cookies in PHP?Setcookie("sample", "ram", time()+3600);
How to Retrieve a Cookie Value?eg : echo $_COOKIE["user"];
How to create a session? How to set a value in session ? How to Remove data from a session?Create session : session_start(); Set value into session : $_SESSION['USER_ID']=1; Remove data from a session : unset($_SESSION['USER_ID'];
what types of loops exist in php?for,while,do while and foreach (NB: You should learn its usage)
MYSQL
How to create a mysql connection?mysql_connect(servername,username,password);
How to select a database?mysql_select_db($db_name);
How to execute an sql query? How to fetch its result ?$my_qry = mysql_query("SELECT * FROM `users` WHERE `u_id`='1'; "); $result = mysql_fetch_array($my_qry); echo $result['First_name'];
Write a program using while loop$my_qry = mysql_query("SELECT * FROM `users` WHERE `u_id`='1'; "); while($result = mysql_fetch_array($my_qry)) { echo $result['First_name'.]." "; }
How we can retrieve the data in the result set of MySQL using PHP?
What is the use of explode() function ?Syntax : array explode ( string $delimiter , string $string [, int $limit ] ); This function breaks a string into an array. Each of the array elements is a substring of string formed by splitting it on boundaries formed by the string delimiter.
What is the difference between explode() and split() functions?Split function splits string into array by regular expression. Explode splits a string into array by string.
What is the use of mysql_real_escape_string() function?It is used to escapes special characters in a string for use in an SQL statement
Write down the code for save an uploaded file in php.if ($_FILES["file"]["error"] == 0) { move_uploaded_file($_FILES["file"]["tmp_name"], "upload/" . $_FILES["file"]["name"]); echo "Stored in: " . "upload/" . $_FILES["file"]["name"]; }
How to create a text file in php?$filename = "/home/user/guest/newfile.txt"; $file = fopen( $filename, "w" ); if( $file == false ) { echo ( "Error in opening new file" ); exit(); } fwrite( $file, "This is a simple test\n" ); fclose( $file );
How to strip whitespace (or other characters) from the beginning and end of a string ?The trim() function removes whitespaces or other predefined characters from both sides of a string.
What is the use of header() function in php ?The header() function sends a raw HTTP header to a client browser.Remember that this function must be called before sending the actual out put.For example, You do not print any HTML element before using this function.
How to redirect a page in php?The following code can be used for it, header("Location:index.php");
How stop the execution of a php scrip ?exit() function is used to stop the execution of a page
How to set a page as a home page in a php based site ?index.php is the default name of the home page in php based sites
How to find the length of a string?strlen() function used to find the length of a string
what is the use of rand() in php?It is used to generate random numbers.If called without the arguments it returns a pseudo-random integer between 0 and getrandmax(). If you want a random number between 6 and 12 (inclusive), for example, use rand(6, 12).This function does not generate cryptographically safe values, and should not be used for cryptographic uses. If you want a cryptographically secure value, consider using openssl_random_pseudo_bytes() instead.
what is the use of isset() in php?This function is used to determine if a variable is set and is not NULL
What is the difference between mysql_fetch_array() and mysql_fetch_assoc() ?mysql_fetch_assoc function Fetch a result row as an associative array, While mysql_fetch_array()fetches an associative array, a numeric array, or both
What is mean by an associative array?Associative arrays are arrays that use string keys is called associative arrays.
What is the importance of "method" attribute in a html form?"method" attribute determines how to send the form-data into the server.There are two methods, get and post. The default method is get.This sends the form information by appending it on the URL.Information sent from a form with the POST method is invisible to others and has no limits on the amount of information to send.
What is the importance of "action" attribute in a html form?The action attribute determines where to send the form-data in the form submission.
What is the use of "enctype" attribute in a html form?The enctype attribute determines how the form-data should be encoded when submitting it to the server. We need to set enctype as "multipart/form-data" when we are using a form for uploading files
How to create an array of a group of items inside an HTML form ?We can create input fields with same name for "name" attribute with squire bracket at the end of the name of the name attribute, It passes data as an array to PHP. For instance :
Define Object-Oriented MethodologyObject orientation is a software/Web development methodology that is based on the modeling a real world system.An object is the core concept involved in the object orientation. An object is the copy of the real world enity.An object oriented model is a collection of objects and its inter-relationships
How do you define a constant?Using define() directive, like define ("MYCONSTANT",150)
How send email using php?To send email using PHP, you use the mail() function.This mail() function accepts 5 parameters as follows (the last 2 are optional). You need webserver, you can't send email from localhost. eg : mail($to,$subject,$message,$headers);
How to find current date and time?The date() function provides you with a means of retrieving the current date and time, applying the format integer parameters indicated in your script to the timestamp provided or the current local time if no timestamp is given. In simplified terms, passing a time parameter is optional - if you don't, the current timestamp will be used.
Difference between mysql_connect and mysql_pconnect?There is a good page in the php manual on the subject, in short mysql_pconnect() makes a persistent connection to the database which means a SQL link that do not close when the execution of your script ends. mysql_connect()provides only for the databasenewconnection while using mysql_pconnect , the function would first try to find a (persistent) link that's already open with the same host, username and password. If one is found, an identifier for it will be returned instead of opening a new connection... the connection to the SQL server will not be closed when the execution of the script ends. Instead, the link will remain open for future use.
What is the use of "ksort" in php?It is used for sort an array by key in reverse order.
What is the difference between $var and $$var?They are both variables. But $var is a variable with a fixed name. $$var is a variable who's name is stored in $var. For example, if $var contains "message", $$var is the same as $message.
What are the encryption techniques in PHPMD5 PHP implements the MD5 hash algorithm using the md5 function, eg : $encrypted_text = md5 ($msg);mcrypt_encrypt :- string mcrypt_encrypt ( string $cipher , string $key , string $data , string $mode [, string $iv ] ); Encrypts plaintext with given parameters
What is the use of the function htmlentities?htmlentities Convert all applicable characters to HTML entities This function is identical to htmlspecialchars() in all ways, except with htmlentities(), all characters which have HTML character entity equivalents are translated into these entities.
How to delete a file from the systemUnlink() deletes the given file from the file system.
How to get the value of current session id?session_id() function returns the session id for the current session.
What are the differences between mysql_fetch_array(), mysql_fetch_object(), mysql_fetch_row()?
What are the different types of errors in PHP ?Here are three basic types of runtime errors in PHP:
what is sql injection ?SQL injection is a malicious code injection technique.It exploiting SQL vulnerabilities in Web applications
What is x+ mode in fopen() used for?Read/Write. Creates a new file. Returns FALSE and an error if file already exists
How to find the position of the first occurrence of a substring in a stringstrpos() is used to find the position of the first occurrence of a substring in a string
What is PEAR?PEAR is a framework and distribution system for reusable PHP components.The project seeks to provide a structured library of code, maintain a system for distributing code and for managing code packages, and promote a standard coding style.PEAR is broken into three classes: PEAR Core Components, PEAR Packages, and PECL Packages. The Core Components include the base classes of PEAR and PEAR_Error, along with database, HTTP, logging, and e-mailing functions. The PEAR Packages include functionality providing for authentication, networking, and file system features, as well as tools for working with XML and HTML templates.
Distinguish between urlencode and urldecode?This method is best when encode a string to used in a query part of a url. it returns a string in which all non-alphanumeric characters except -_. have replece with a percentege(%) sign . the urldecode->Decodes url to encode string as any %and other symbole are decode by the use of the urldecode() function.
What are the different errors in PHP?In PHP, there are three types of runtime errors, they are:Warnings: These are important errors. Example: When we try to include () file which is not available. These errors are showed to the user by default but they will not result in ending the script. Notices: These errors are non-critical and trivial errors that come across while executing the script in PHP. Example: trying to gain access the variable which is not defined. These errors are not showed to the users by default even if the default behavior is changed. Fatal errors: These are critical errors. Example: instantiating an object of a class which does not exist or a non-existent function is called. These errors results in termination of the script immediately and default behavior of PHP is shown to them when they take place. Twelve different error types are used to represent these variations internally.
1. mysql_fetch_row
2. mysql_fetch_array
3. mysql_fetch_object
4. mysql_fetch_assoc
Mysql_fetch_array Fetch a result row as an associative array, a numeric array, or both.
mysql_fetch_object ( resource result ) Returns an object with properties that correspond to the fetched row and moves the internal data pointer ahead. Returns an object with properties that correspond to the fetched row, or FALSE if there are no more rows
mysql_fetch_row() fetches one row of data from the result associated with the specified result identifier. The row is returned as an array. Each result column is stored in an array offset, starting at offset 0.
1. Notices: These are trivial, non-critical errors that PHP encounters while executing a script - for example, accessing a variable that has not yet been defined. By default, such errors are not displayed to the user at all - although you can change this default behavior.
2. Warnings: These are more serious errors - for example, attempting to include() a file which does not exist. By default, these errors are displayed to the user, but they do not result in script termination.
3. Fatal errors: These are critical errors - for example, instantiating an object of a non-existent class, or calling a non-existent function. These errors cause the immediate termination of the script, and PHP's default behavior is to display them to the user when they take place.
For more information about placement and interviews visit us at - https://www.datacouncil.in/
or Walk in to our institute at karvenagar, Pune.
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Things You Can Do to Become a Better PHP Developer
PHP is likely the most well known web improvement dialect at this moment. No less than 20 million spaces utilize PHP and it's the dialect utilized on real destinations, for example, Wikipedia and Facebook and additionally in a portion of the world's greatest open source ventures like WordPress and Drupal.
In this article, I'll impart to you ten things I want to be told when I was simply beginning with PHP advancement, and I'm trusting you'll have the capacity to take in some things in case you're recently stepping into this magnificent web improvement dialect.
1. Utilize PHP Core Functions and Classes
In case you're attempting to accomplish something that appears to be genuinely normal, odds are, there's as of now a PHP capacity or class that you can exploit. Continuously look at the PHP manual before making your own particular capacities. There's no compelling reason to make a capacity to evacuate the white space toward the start and toward the finish of a string when you can simply utilize the trim() work. Why manufacture a XML parser for RSS channels when you can exploit PHP's XML Parser capacities, (for example, xml_parse_into_struct)?
2. Make a Configuration File
Rather than having your database association settings scattered all over the place, why not simply make one ace record that contains its settings, and afterward incorporate it in your PHP scripts? In the event that you have to change points of interest later on, you can do it in one record rather than a few documents. This is likewise exceptionally helpful when you have to utilize different constants and capacities all through various scripts.
Utilizing a config document is a well known web application design that makes your code more measured and simpler to keep up.
3. Continuously Sanitize Data That Will Go into Your Database
SQL infusions are more typical that you may think, and unless you need a major cerebral pain later on, disinfecting your database sources of info is the best way to dispose of the issue. The principal thing you ought to do is find out about well known ways your application can be traded off and get a decent comprehension of what SQL infusions are; read about cases of SQL infusion assaults and look at this SQL infusion cheat sheet.
Fortunately, there's a PHP work that can help make a major stack of the issue leave: mysql_real_escape_string. mysql_real_escape_string will take a general string (find out about information sorts through this PHP factors manage) and disinfect it for you. On the off chance that you utilize the capacity together with htmlspecialchars, which changes over held HTML characters (like <script> gets to be <script>), will your database be secured, as well as defend your application against cross-site scripting (XSS) assaults when rendering client submitted HTML, (for example, those posted in remarks or gathering strings).
4. Leave Error Reporting Turned On in Development Stage
Taking a gander at the PHP White Screen of Death is never useful with the exception of knowing something is certainly off-base. When fabricating your application, leave error_reporting and display_errors swung on to see run-time mistakes that will help you rapidly recognize where blunders are originating from.
You can set up these run-time arrangements in your server's php.ini record or, in the event that you don't have entry to abrogate the mandates in this document, set them on top of your PHP scripts (utilizing the ini_set() capacity to set display_errors to 1, however it has its constraints when done along these lines).
The purpose for turning on mistake detailing is very basic — the sooner you think about your blunders, the quicker you can settle them. You won't not think about the notice messages that PHP may give you, yet even those normally motion towards a memory-related issue that you can deal with. When you're set working out your application, turn error_reporting and display_errors off or set their qualities to a generation prepared level.
5. Don't Over-Comment Your Code
Appropriate documentation of your code through remarks in your scripts is certainly a decent practice, yet is it truly important to remark each and every line? Likely not. Remark the muddled parts of your source code so that when you return to it later you'll rapidly recall what's going, however don't remark straightforward things, for example, your MySQL association code. Great code is plain as day more often than not.
6. Keep Favorite Code Snippets Handy
You'll be coding a great deal of similar things all through your PHP advancement profession, and keeping code bits constantly accessible will help you spare a considerable measure of time. There are a few applications that can keep and match up your code piece gathering for you, so regardless of where you will be, you can simply have your scraps accessible. Some applications you can use to corral your code scraps are Snippet, snippely, Code Collector, and Snipplr (electronic).
Most coordinated improvement conditions (IDEs, for example, Eclipse (which can store code formats) and Dreamweaver (through the Snippets Panel) may have worked in elements for putting away code pieces.
Indeed, even a straightforward and efficient registry called bits that contain content documents (or PHP scripts) — and conceivably matched up in the cloud utilizing an application like Dropbox in the event that you utilize numerous PCs — can do the trap.
7. Utilize a Good Source Editor to Save You Time
Your editorial manager is the place you'll invest the larger part of your energy, so you need to utilize something that helps you spare time. Sentence structure highlighting is an unquestionable requirement and certainly something you ought to search for as a product include. Different rewards incorporate code indicating, code route and inherent troubleshooting apparatuses. These elements can wind up sparing you huge measures of time. A case of a source code proofreader/IDE for PHP is phpDesigner.
Set aside the opportunity to get acquainted with your source code editorial manager's components by perusing the documentation and perusing instructional exercises on the web. A touch of time interest in this field can truly streamline your coding work process.
Look at this rundown of source code editors for designers and in addition this rundown of free content managers for coders to find well known code-altering applications.
8. Utilize a MySQL Administration Tool (Like phpMyAdmin)
I know some insane no-nonsense designers who like working with MySQL (the prevalent Database Management System blending for PHP) by means of charge line, which, to me, is wasteful and simply, well, insane. It really is great to know how to manage your MySQL database utilizing mysqladmin, yet a while later, you ought to utilize a graphical UI like phpMyAdmin to accelerate database advancement and organization.
phpMyAdmin, specifically, is a brilliant open source database watcher/supervisor that permits you to see your MySQL databases graphically with the goal that you don't need to sit idle doing things by means of the summon line. You can rapidly fabricate databases and their tables, send out your databases into SQL documents, run SQL inquiries, advance tables, check for issues, make MySQL database clients and set up their benefits rapidly, and significantly more. There is a decent shot your web have as of now has phpMyAdmin introduced, and if not, it just takes minutes to introduce.
Look at this rundown of the best MySQL database administration apparatuses and this rundown of MySQL applications for other options to phpMyAdmin.
9. Utilize a PHP Framework
It required me a truly long investment to acknowledge the way that utilizing a web application improvement/quick application advancement structure would bail me out. You have a little expectation to learn and adapt to start with, and there will be a great deal of perusing to do to figure out how the API of the system functions, yet you get stunning profitability and effectiveness benefits later. Utilizing a system drives you to utilize better web advancement designs that you won't not utilize at this moment.
Utilizing a PHP structure pays off big time when you need to impart your code to others later on or when you need to cooperate with somebody; it gives you an institutionalized stage for building web applications. I took in the significance of this the most difficult way possible when I needed to begin contracting different engineers.
Some mainstream PHP structures are CakePHP, CodeIgniter, symfony, and Zend.
10. Interface with Other PHP Developers
You don't have any acquaintance with it all. What's more, regardless of the possibility that you think you do, there are a huge number of others out there that know how to show improvement over you do. Join a PHP people group like PHPDeveloper and associate with others. By associating with different designers, you'll learn better methods for doing the things you're as of now doing.
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computer php funktion mysql_real_escape_string in c umsetzen 927
computer php funktion mysql_real_escape_string in c umsetzen 927 https://sirmark.de/computer/php-funktion-mysql_real_escape_string-in-c-umsetzen-927.html
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Les injections SQL sont des failles de sécurités en informatique qui consiste à contourner le fonctionnement normal des requêtes SQL en utilisant un contenu spécifique.
L'article suivant est très instructif et didactique. Il donne un exemple concret d'une faille de sécurité grâce à une injection SQL.
L'article présente 3 fonctions PHP différentes :
Une fonction utilisant mysqli_real_escape_string() pour PHP 5
Une fonction utilisant mysql_real_escape_string() pour PHP 4
Une fonction utilisant addslashes() pour les versions de PHP inférieur à PHP 4.3
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