Aug 1, 2023 · The reason for the two different variations of "and" and "or" operators is that they operate at different precedences. (See Operator Precedence.) لغة PHP (والتي هي اختصارٌ تعاودي للعبارة PHP: Hypertext Preprocessor) هي لغةٌ مفتوحة المصدر شائعة الاستخدام لها مجال استخدامٍ عامٍ لكنها تناسب تطوير الويب ودمج لغة HTML معها. الذي يُميّز PHP عن الشيفرات التي ...Sep 23, 2022 · Title is the heading of the webpage. The sentence or string enclosed between html title tag () is the title of your website. Search engines searches for the title of your website and displays title along with your website address on search result. Title is the most important element for both SEO and social sharing. The challenge is to exploit a PHP script engine using this bug. We can execute arbitrary PHP code but we must bypass disabled_function restriction to execute shell command, using a UAF vulnerability. Therefore, this is actually more a Pwn challenge than a Web challenge. However, different from official PHP engine, a custom libphp7.so isPHP is a recursive acronym for "PHP: Hypertext Preprocessor". PHP is a server side scripting language that is embedded in HTML. It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites. It is integrated with a number of popular databases, including MySQL, PostgreSQL, Oracle, Sybase, Informix, and ... Mar 15, 2017 · PWM signals can be generated in our PIC Microcontroller by using the CCP (Compare Capture PWM) module. The resolution of our PWM signal is 10-bit, that is for a value of 0 there will be a duty cycle of 0% and for a value of 1024 (2^10) there be a duty cycle of 100%. There are two CCP modules in our PIC MCU (CCP1 And CCP2), this means we can ... Aug 1, 2023 · However, PHP Manual is not listed "(" and ")" in precedence list. It looks like "(" and ")" has higher precedence as it should be. Note: If you write following code, you would need "()" to get expected value. A comment in PHP code is a line that is not executed as a part of the program. Its only purpose is to be read by someone who is looking at the code. Comments can be used to: Let others understand your code. Remind yourself of what you did - Most programmers have experienced coming back to their own work a year or two later and having to re ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"css","path":"css","contentType":"directory"},{"name":"font-awesome","path":"font-awesome ...Our basic PHP website is going to feature a home page, including biographical information and some images. For this simple PHP website, you're going to create a single PHP page populated by content from three HTML pages. The index.php file you create can then be edited by adjusting the words and images from the original HTML files.pwn.php This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.Required Knowledge. Before you begin this PHP tutorial, it is necessary that you have a basic understanding and experience of the following: HTML - PHP can be written with HTML, so it's essential. Basic programming knowledge - If you have any traditional programming experience like C, then learning PHP will be very easy for you.Great if you like your tutorials to the point. 11. Learn-php.org Free Interactive PHP Tutorial. Learn-php.org free interactive PHP tutorial. The unique thing about this PHP tutorial is that it’s a set of interactive exercises that encourage you to try out coding and see if you can get the expected output.The challenge is to exploit a PHP script engine using this bug. We can execute arbitrary PHP code but we must bypass disabled_function restriction to execute shell command, using a UAF vulnerability. Therefore, this is actually more a Pwn challenge than a Web challenge. However, different from official PHP engine, a custom libphp7.so isDec 8, 2021 · 7 Min Read. PHP (Hypertext Preprocessor) is known as a general-purpose scripting language that can be utilized to create intuitive and dynamic websites. It was among the pioneer server-side language that can be integrated into HTML, making it easier to include functionality to web pages without requiring to call external data. This PHP tutorial, whether you’re a beginner or a professional, our tutorial is designed to provide you with in-depth knowledge of the PHP scripting language. With our PHP tutorial, you’ll learn all the important topics, including control statements, functions, arrays, strings, file handling, form handling, regular expressions, date and ...Aug 1, 2023 · PHP supports C-style pre- and post-increment and decrement operators. Note: The increment/decrement operators only affect numbers and strings. Arrays, objects, booleans and resources are not affected. Decrementing null values has no effect too, but incrementing them results in 1. Increment/decrement Operators. A session is started with the session_start () function. Session variables are set with the PHP global variable: $_SESSION. Now, let's create a new page called "demo_session1.php". In this page, we start a new PHP session and set some session variables: The double arrow operator, =>, is used as an access mechanism for arrays. This means that what is on the left side of it will have a corresponding value of what is on the right side of it in array context. This can be used to set values of any acceptable type into a corresponding index of an array. The index can be associative (string based) or ...The interactive shell stores your history which can be accessed using the up and down keys. The history is saved in the ~/.php_history file. The CLI SAPI provides the php.ini settings cli.pager and cli.prompt. The cli.pager setting allows an external program (such as less) to act as a pager for the output instead of being displayed directly on ...syscall kit is a pwn task. An archive containing a binary, and its source code is provided. The binary lets the user call syscalls with 3 arguments of its choice. Some syscalls (deemed to be dangerous) are banned. The user can call up to 10 syscalls before the program exits.pwn.php This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.#!/usr/bin/python3 # MIT License # Copyright (c) 2022 sam # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and ...Jul 7, 2020 · Fortunately for us our CDATA object has a pointer to a list of function handlers :). Our goal is to use our read to read a handler's address which would be in the php image. In the standard PHP build we had to read further into the handler list to get PHP .text pointer and not a ffi.so .text pointer. PHP can create, open, read, write, delete, and close files on the server. PHP can collect form data. PHP can send and receive cookies. PHP can add, delete, modify data in your database. PHP can be used to control user-access. PHP can encrypt data. With PHP you are not limited to output HTML. You can output images or PDF files. First, contact your hosting company and report this. If this is server-wide, they need to know about it. The most common cause of infections like this is vulnerable popular PHP software (such as PHPBB, Mamboserver and other popular systems). If you're running any 3rd party PHP code, make sure you have the latest version.{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"css","path":"css","contentType":"directory"},{"name":"font-awesome","path":"font-awesome ...The sentence or string enclosed between html title tag () is the title of your website. Search engines searches for the title of your website and displays title along with your website address on search result. Title is the most important element for both SEO and social sharing. Title should be less than 50 to 60 characters because search ...Variable names follow the same rules as other labels in PHP. A valid variable name starts with a letter or underscore, followed by any number of letters, numbers, or underscores. As a regular ...Jul 26, 2019 · Variable names follow the same rules as other labels in PHP. A valid variable name starts with a letter or underscore, followed by any number of letters, numbers, or underscores. As a regular ... The challenge is to exploit a PHP script engine using this bug. We can execute arbitrary PHP code but we must bypass disabled_function restriction to execute shell command, using a UAF vulnerability. Therefore, this is actually more a Pwn challenge than a Web challenge. However, different from official PHP engine, a custom libphp7.so isVulnerable App: Plesk Apache zeroday / June 2013 discovered & exploited by kingcope this Plesk configuration setting makes it possible: scriptAlias /phppath/ "/usr/bin/" Furthermore this is not cve-2012-1823 because the php interpreter is called directly. (no php file is called) Parallels Plesk Remote Exploit -- PHP Code Execution and therefore ...PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Start learning PHP now ».NOTE: The documentation below refers to the Phalcon 5.0.0 installation. Adjust your installation/commands to the version you want to install accordingly. Along with PHP 7.4 or greater, depending on your application needs and the Phalcon components you need, you might need to install the following extensions: curl. fileinfo.In PHP, the array () function is used to create an array: array (); In PHP, there are three types of arrays: Indexed arrays - Arrays with a numeric index. Associative arrays - Arrays with named keys. Multidimensional arrays - Arrays containing one or more arrays.PHP operators for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex ...Solution: Enable the mbstring extension in your PHP configuration (php.ini) file. Locate the line ";extension=mbstring" and uncomment it by removing the semicolon at the beginning. Save the changes and restart your web server. "The mysqlnd extension is missing." Solution: Enable the mysqlnd extension in your PHP configuration (php.ini) file.PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Start learning PHP now ». pwn.php This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.# diylist - zer0pts CTF 2020 (pwn, 453p, 36 solved) ## Introduction. diylist is a pwn task. An archive containing a binary, a library, and its source code is provided.May 4, 2020 · PHP Object Memory Layout. Before exploiting any script engine, one critical thing to know is how object is stored in this script engine. In this case, we need to know how string and other PHP objects are stored in memory, since the best way to exploit UAF is to replace the just freed string with another PHP object to have type confusion. In ... PHP operators for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex ...Jun 5, 2013 · Vulnerable App: Plesk Apache zeroday / June 2013 discovered & exploited by kingcope this Plesk configuration setting makes it possible: scriptAlias /phppath/ "/usr/bin/" Furthermore this is not cve-2012-1823 because the php interpreter is called directly. (no php file is called) Parallels Plesk Remote Exploit -- PHP Code Execution and therefore ... PHP Operators. Operators are used to perform operations on variables and values. PHP divides the operators in the following groups: Arithmetic operators. Assignment operators. Comparison operators. Increment/Decrement operators. Logical operators. String operators.First, contact your hosting company and report this. If this is server-wide, they need to know about it. The most common cause of infections like this is vulnerable popular PHP software (such as PHPBB, Mamboserver and other popular systems). If you're running any 3rd party PHP code, make sure you have the latest version.NOTE: The documentation below refers to the Phalcon 5.0.0 installation. Adjust your installation/commands to the version you want to install accordingly. Along with PHP 7.4 or greater, depending on your application needs and the Phalcon components you need, you might need to install the following extensions: curl. fileinfo. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"css","path":"css","contentType":"directory"},{"name":"font-awesome","path":"font-awesome ...Exploitation. The binary uses gets to read the user input in a fixed-size array on the stack. There is no protection on the stack. This is the most basic case of a stack-based buffer overflow. The binary is statically compiled, so the whole libc is contianed in the bianry. It is not compiled as a position-independant executable. Just like any other programming language, PHP also supports various types of operations like arithmetic operations (addition, subtraction, etc), logical operations (AND, OR etc), Increment/Decrement Operations, etc. Thus, PHP provides us with many operators to perform such operations on various operands or variables, or values.Vulnerable App: Plesk Apache zeroday / June 2013 discovered & exploited by kingcope this Plesk configuration setting makes it possible: scriptAlias /phppath/ "/usr/bin/" Furthermore this is not cve-2012-1823 because the php interpreter is called directly. (no php file is called) Parallels Plesk Remote Exploit -- PHP Code Execution and therefore ...disable_functions bypass - PHP safe_mode bypass via proc_open() and custom environment Exploit disable_functions bypass - PHP Perl Extension Safe_mode Bypass Exploit disable_functions bypass - PHP 5.2.3 - Win32std ext Protections BypassPHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.Launch your Laravel infrastructure on Vapor and fall in love with the scalable simplicity of serverless. Lightweight starter kit scaffolding for new applications with Blade or Inertia. Take the pain out of managing subscriptions on Stripe or Paddle. Automated browser testing to ship your application with confidence. worth reading for people learning about php and programming: (adding extras <?php ?> to get highlighted code) about the following example in this page manual: Example#1 Logical operators illustratedworth reading for people learning about php and programming: (adding extras <?php ?> to get highlighted code) about the following example in this page manual: Example#1 Logical operators illustratedTo change the PHP settings, open your User or Workspace Settings ( ⌘, (Windows, Linux Ctrl+,)) and type 'php' to filter the list of available settings. To set the PHP executable path, select the Edit in settings.json link under PHP > Validate: Executable Path, which will open your user settings.json file. Jul 26, 2019 · Variable names follow the same rules as other labels in PHP. A valid variable name starts with a letter or underscore, followed by any number of letters, numbers, or underscores. As a regular ... 0.01 7649551 US Dollars. 1 USD = 56.6587 PHP. We use the mid-market rate for our Converter. This is for informational purposes only. You won’t receive this rate when sending money. Login to view send rates. Philippine Peso to US Dollar conversion — Last updated Sep 3, 2023, 08:11 UTC.PHP is a server-side scripting language designed specifically for web development. It is open-source which means it is free to download and use. It is very simple to learn and use. The files have the extension “.php”. Rasmus Lerdorf inspired the first version of PHP and participated in the later versions. It is an interpreted language and ...From: malvuln <malvuln13 gmail com> Date: Thu, 17 Mar 2022 13:06:28 -0400Dec 8, 2021 · 7 Min Read. PHP (Hypertext Preprocessor) is known as a general-purpose scripting language that can be utilized to create intuitive and dynamic websites. It was among the pioneer server-side language that can be integrated into HTML, making it easier to include functionality to web pages without requiring to call external data. syscall kit is a pwn task. An archive containing a binary, and its source code is provided. The binary lets the user call syscalls with 3 arguments of its choice. Some syscalls (deemed to be dangerous) are banned. The user can call up to 10 syscalls before the program exits.PHP-PgSQL Similarly, to use PostgreSQL with PHP you should install the php-pgsql package: sudo apt install php-pgsql Configure PHP. If you have installed the libapache2-mod-php or php-cgi packages, you can run PHP scripts from your web browser. If you have installed the php-cli package, you can run PHP scripts at a terminal prompt. first to pivot a new stack in the BSS section (for example at BSS + 0x50) and clear the stack for a one-gadget. finall, overwrite one of the stream buffers partially and use it as a return address. The 3 last bytes of a one-shot gadget (libc + 0xF1147) can be used. This result in an exploit that works once every 4096 times on average.Synopsis The website contained a CSV parser application which was vulnerable to a code injection vulnerability in how it parses certain payloads. Based on the provided Dockerfile, the server is known to have a root-owned SUID binary located at /opt/readflag which would read the flag contained at /root/flag.txt. The PHP version running on the server was vulnerable to an open_basedir bypass that ...First, contact your hosting company and report this. If this is server-wide, they need to know about it. The most common cause of infections like this is vulnerable popular PHP software (such as PHPBB, Mamboserver and other popular systems). If you're running any 3rd party PHP code, make sure you have the latest version.Base64 Encoder is a pwn task. Only a link to a web service is provided. No binary is given. This web service provides a way to encode and decode a text and a key to and from base64+. The robots.txt file mentions /cgi-src/. This directory contains a chall binary that is executed by the /cgi-bin/chall endpoint. The binary is a 32-bits CGI ELF.www.php.net – PHP distribution, tutorials, newsgroups, and more. www.phpfreaks.com - PHP and MySQL tutorials, scripts, forums, and more. www.phpbuilder.com – Collection of PHP resources. Hello World If your web server supports PHP, type this example into a text file called hello.php and access it in your browser byPHP's behaviour when using more than one unparenthesized ternary operator within a single expression is non-obvious compared to other languages. Indeed prior to PHP 8.0.0, ternary expressions were evaluated left-associative, instead of right-associative like most other programming languages.The sentence or string enclosed between html title tag () is the title of your website. Search engines searches for the title of your website and displays title along with your website address on search result. Title is the most important element for both SEO and social sharing. Title should be less than 50 to 60 characters because search ...Jun 5, 2013 · Vulnerable App: Plesk Apache zeroday / June 2013 discovered & exploited by kingcope this Plesk configuration setting makes it possible: scriptAlias /phppath/ "/usr/bin/" Furthermore this is not cve-2012-1823 because the php interpreter is called directly. (no php file is called) Parallels Plesk Remote Exploit -- PHP Code Execution and therefore ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"css","path":"css","contentType":"directory"},{"name":"font-awesome","path":"font-awesome ...A session is started with the session_start () function. Session variables are set with the PHP global variable: $_SESSION. Now, let's create a new page called "demo_session1.php". In this page, we start a new PHP session and set some session variables:Vulnerable App: Plesk Apache zeroday / June 2013 discovered & exploited by kingcope this Plesk configuration setting makes it possible: scriptAlias /phppath/ "/usr/bin/" Furthermore this is not cve-2012-1823 because the php interpreter is called directly. (no php file is called) Parallels Plesk Remote Exploit -- PHP Code Execution and therefore .... This structure is used by the writev and readv syscalls. They are not blacklsited, and can be used to write 2 whole pages of the content of the heap to stdout. . The heap contains an address of the vtable of the Emulator object.Required Knowledge. Before you begin this PHP tutorial, it is necessary that you have a basic understanding and experience of the following: HTML - PHP can be written with HTML, so it's essential. Basic programming knowledge - If you have any traditional programming experience like C, then learning PHP will be very easy for you.This PHP tutorial, whether you’re a beginner or a professional, our tutorial is designed to provide you with in-depth knowledge of the PHP scripting language. With our PHP tutorial, you’ll learn all the important topics, including control statements, functions, arrays, strings, file handling, form handling, regular expressions, date and ...Our basic PHP website is going to feature a home page, including biographical information and some images. For this simple PHP website, you're going to create a single PHP page populated by content from three HTML pages. The index.php file you create can then be edited by adjusting the words and images from the original HTML files.PHP - Wikipedia. Toggle History subsection. 客家語/Hak-kâ-ngî. 閩東語 / Mìng-dĕ̤ng-ngṳ̄. Oʻzbekcha / ўзбекча. [7] [2] [8] PHP is a general-purpose scripting language geared towards web development. [9] It was originally created by Danish-Canadian Rasmus Lerdorf in 1993 and released in 1995. [10] [11] The PHP reference ...This is an example PHP application, which is intentionally vulnerable to web attacks. It is intended to help you test Acunetix. It also helps you understand how developer errors and bad configuration may let someone break into your website. You can use it to test other tools and your manual hacking skills as well.NOTE: The documentation below refers to the Phalcon 5.0.0 installation. Adjust your installation/commands to the version you want to install accordingly. Along with PHP 7.4 or greater, depending on your application needs and the Phalcon components you need, you might need to install the following extensions: curl. fileinfo.PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.PHP is a server side scripting language that is embedded in HTML. It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites. It is integrated with a number of popular databases, including MySQL, PostgreSQL, Oracle, Sybase, Informix, and Microsoft SQL Server. PHP is pleasingly zippy in its execution ...There are two main ways to install PHP on a Windows®-based computer: download the Windows Installer or use the Windows Zip file from the PHP Web site. Either method will get PHP working, but both have some extra steps that are needed to make PHP work well. Windows InstallerAug 1, 2023 · 2 years ago. In php there are 3 types of comments. 1.single line c++ style comment (//) 2.single line Unix shell stype comment (#) 3.multi line c style comment (/*/) single or multi line comment comes to the end of the line or come first to the current block of php code.
May 5, 2012 · In order to set project specific configuration options, simply add a php.ini file to your project, and then run the built-in server with this flag: php -S localhost:8000 -c php.ini. This is especially helpful for settings that cannot be set at runtime (ini_set ()). up. down. . Seattle
PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Start learning PHP now » Easy Learning with "PHP Tryit"Sep 23, 2022 · Title is the heading of the webpage. The sentence or string enclosed between html title tag () is the title of your website. Search engines searches for the title of your website and displays title along with your website address on search result. Title is the most important element for both SEO and social sharing. Our basic PHP website is going to feature a home page, including biographical information and some images. For this simple PHP website, you're going to create a single PHP page populated by content from three HTML pages. The index.php file you create can then be edited by adjusting the words and images from the original HTML files.DirectoryApp PHP script supports multiple payment gateways like Paypal, Stripe, 2Checkout, MercadoPago for easy and safe payment collection. Provides exact directory locations as it is compatible with Google Maps, Mapbox, OpenStreetMap, HERE, TomTom, etc. With the help of DirectoryApp script, you can create custom fields for different categories.0.01 7649551 US Dollars. 1 USD = 56.6587 PHP. We use the mid-market rate for our Converter. This is for informational purposes only. You won’t receive this rate when sending money. Login to view send rates. Philippine Peso to US Dollar conversion — Last updated Sep 3, 2023, 08:11 UTC.www.php.net – PHP distribution, tutorials, newsgroups, and more. www.phpfreaks.com - PHP and MySQL tutorials, scripts, forums, and more. www.phpbuilder.com – Collection of PHP resources. Hello World If your web server supports PHP, type this example into a text file called hello.php and access it in your browser byExploitation. The binary uses gets to read the user input in a fixed-size array on the stack. There is no protection on the stack. This is the most basic case of a stack-based buffer overflow. The binary is statically compiled, so the whole libc is contianed in the bianry. It is not compiled as a position-independant executable.May 12, 2016 · Take a look at the Strings manual page to learn more about string handling in PHP. I also recommend having a look at the Language Reference for general guidance. Do keep in mind that PHP is a high level scripting language, and is very different from C++, even if they might look the same. There are things that are very feasible in C++ but not in ... . This structure is used by the writev and readv syscalls. They are not blacklsited, and can be used to write 2 whole pages of the content of the heap to stdout. . The heap contains an address of the vtable of the Emulator object.I am trying to run PHP code on Microsoft VS Code. When I click launch the only thing that happens is an error in the debug console saying: spawn php ENOENT. To fix this, I have put the dll file for XDebug into the ext folder. Solution: Enable the mbstring extension in your PHP configuration (php.ini) file. Locate the line ";extension=mbstring" and uncomment it by removing the semicolon at the beginning. Save the changes and restart your web server. "The mysqlnd extension is missing." Solution: Enable the mysqlnd extension in your PHP configuration (php.ini) file.Vulnerable App: Plesk Apache zeroday / June 2013 discovered & exploited by kingcope this Plesk configuration setting makes it possible: scriptAlias /phppath/ "/usr/bin/" Furthermore this is not cve-2012-1823 because the php interpreter is called directly. (no php file is called) Parallels Plesk Remote Exploit -- PHP Code Execution and therefore ...Synology Photo Station 6.8.2-3461 - 'SYNOPHOTO_Flickr_MultiUpload' Race Condition File Write Remote Code Execution.. remote exploit for Hardware platformPHP Conditional Statements. Very often when you write code, you want to perform different actions for different conditions. You can use conditional statements in your code to do this. In PHP we have the following conditional statements: if statement - executes some code if one condition is trueRecently my wordpress site got hacked and i solved it by reinstalling the backup version of wp-content folder and also running and repairing wordfence plugin in the site. But my website is showing anExploitation. The binary uses gets to read the user input in a fixed-size array on the stack. There is no protection on the stack. This is the most basic case of a stack-based buffer overflow. The binary is statically compiled, so the whole libc is contianed in the bianry. It is not compiled as a position-independant executable. PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Start learning PHP now ».Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.Synopsis The website contained a CSV parser application which was vulnerable to a code injection vulnerability in how it parses certain payloads. Based on the provided Dockerfile, the server is known to have a root-owned SUID binary located at /opt/readflag which would read the flag contained at /root/flag.txt. The PHP version running on the server was vulnerable to an open_basedir bypass that ...Some ways of comparing two strings are very insecure. After a bit more research, it seemed that strcmp had some issues when comparing a string to something else. If I set $_GET [‘password’] equal to an empty array, then strcmp would return a NULL. Due to some inherent weaknesses in PHP’s comparisons, NULL == 0 will return true ( more info ). .