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An upgrade guide detailing which changes there are between Xdebug 2 and 3, and how to reconfigure your set-up to do similar things. New Concepts # Unlike Xdebug 2, where there was an enabling setting for each feature, with Xdebug 3 you put Xdebug into a specific mode, which can be configured with the xdebug.mode setting. This setting, in combination with xdebug.start_with_request is the new way to

Documentation - all settings This section describes all available configuration settings available in Xdebug. Unless specifically mentioned, each setting can be set in php.ini, files like 99-xdebug.ini, but also in Apache's .htaccess and PHP-FPM's .user.ini files. XDEBUG_CONFIG environment variable # A select set of settings can be set through an XDEBUG_CONFIG environment variable. In this situati

1. Description This document describes a simple protocol for use with language tools and engines for the purpose of debugging applications. It does not describe user interfaces or interactions with the debugger. The protocol provides a means of communication between a debugger engine (scripting engine, vm, etc.) and a debugger IDE (IDE, etc.). Any references to the debugger IDE UI are recommendati

Installation Wizard This page helps you finding which file to download, and how to configure PHP to get Xdebug running. Please paste the full output of phpinfo() (either a copy & paste of the HTML version, the HTML source or php -i output) and submit the form to receive tailored download and installation instructions. The information that you upload will not be stored. The script will only use a f

Xdebug's step debugger allows you to interactively walk through your code to debug control flow and examine data structures. Introduction # Xdebug interacts with IDEs to provide step debugging functionality, and therefore you also need to configure an IDE that knows how to talk to Xdebug with the open DBGp protocol. This protocol is supported by nearly every PHP IDE (including Visual Studio Code a

Xdebug is an extension for PHP, and provides a range of features to improve the PHP development experience. Step Debugging A way to step through your code in your IDE or editor while the script is executing. Improvements to PHP's error reporting An improved var_dump() function, stack traces for Notices, Warnings, Errors and Exceptions to highlight the code path to the error Tracing Writes every fu

Please refer to the installation instructions on how to install Xdebug. Source Xdebug is hosted in GIT. The source code can be browsed through github and can be checked out with: git clone https://github.com/xdebug/xdebug.git Latest Release Xdebug 3.4.0beta1 Command Line Debug Client A lightweight debugging client, mainly used for debugging the DBGp implementation with Xdebug. It can show raw prot

Installation Wizard This page helps you finding which file to download, and how to configure PHP to get Xdebug running. Please paste the full output of phpinfo() (either a copy & paste of the HTML version, the HTML source or php -i output) and submit the form to receive tailored download and installation instructions. The information that you upload will not be stored. The script will only use a f

This section describes on how to install Xdebug. How you install Xdebug depends on your system. There are the following possibilities: Linux with a package manager such as apt, yum, or something else. Linux without an Xdebug package with PECL. macOSX with homebrew, through PECL. Windows, with help from a wizard. Unix-like operating systems, from source. Installing on Linux # Installing Xdebug with

Please refer to the installation instructions on how to install Xdebug. Source Xdebug is hosted in GIT. The source code can be browsed through github and can be checked out with: git clone https://github.com/xdebug/xdebug.git Latest Release Xdebug 3.4.0alpha1 Command Line Debug Client A lightweight debugging client, mainly used for debugging the DBGp implementation with Xdebug. It can show raw pro

Installation Wizard This page helps you finding which file to download, and how to configure PHP to get Xdebug running. Please paste the full output of phpinfo() (either a copy & paste of the HTML version, the HTML source or php -i output) and submit the form to receive tailored download and installation instructions. The information that you upload will not be stored. The script will only use a f

Xdebug's step debugger allows you to interactively walk through your code to debug control flow and examine data structures. Introduction # Xdebug interacts with IDEs to provide step debugging functionality, and therefore you also need to configure an IDE that knows how to talk to Xdebug with the open DBGp protocol. This protocol is supported by nearly every PHP IDE (including Visual Studio Code a

1. Description This document describes a simple protocol for use with language tools and engines for the purpose of debugging applications. It does not describe user interfaces or interactions with the debugger. The protocol provides a means of communication between a debugger engine (scripting engine, vm, etc.) and a debugger IDE (IDE, etc.). Any references to the debugger IDE UI are recommendati

Xdebug's built-in profiler allows you to find bottlenecks in your script and visualize those with an external tool such as KCacheGrind or WinCacheGrind. Introduction # Xdebug's Profiler is a powerful tool that gives you the ability to analyse your PHP code and determine bottlenecks or generally see which parts of your code are slow and could use a speed boost. The profiler also collects informatio

Xdebug 3 — Documentation Installation Development Helpers Function Trace Code Coverage Analysis Garbage Collection Statistics Profiling Step Debugging Command Line Debug Client DBGp Proxy Tool Supported Versions and Compatibility Upgrading from Xdebug 2 to 3 FAQ Description of errors Contributing DBGP - A common debugger protocol specification All Configuration Settings All Functions All Related C

Documentation - all settings This section describes all available configuration settings available in Xdebug. Unless specifically mentioned, each setting can be set in php.ini, files like 99-xdebug.ini, but also in Apache's .htaccess and PHP-FPM's .user.ini files. XDEBUG_CONFIG environment variable # A select set of settings can be set through an XDEBUG_CONFIG environment variable. In this situati

About Xdebug is an extension for PHP to assist with debugging and development. It contains a single step debugger to use with IDEs; it upgrades PHP's var_dump() function; it adds stack traces for Notices, Warnings, Errors and Exceptions; it features functionality for recording every function call and variable assignment to disk; it contains a profiler; and it provides code coverage functionality f

Xdebug is an extension for PHP, and provides a range of features to improve the PHP development experience. Step Debugging A way to step through your code in your IDE or editor while the script is executing. Improvements to PHP's error reporting An improved var_dump() function, stack traces for Notices, Warnings, Errors and Exceptions to highlight the code path to the error Tracing Writes every fu