» The full documentation

» Installation

This section describes on how to install Xdebug.

» Basic Features

Xdebug's basic functions include the display of stack traces on error conditions, maximum nesting level protection and time tracking.

» Variable Display Features

Xdebug replaces PHP's var_dump() function for displaying variables. Xdebug's version includes different colors for different types and places limits on the amount of array elements/object properties, maximum depth and string lengths. There are a few other functions dealing with variable display as well.

» Stack Traces

When Xdebug is activated it will show a stack trace whenever PHP decides to show a notice, warning, error etc. The information that stack traces display, and the way how they are presented, can be configured to suit your needs.

» Function Traces

Xdebug allows you to log all function calls, including parameters and return values to a file in different formats.

» Code Coverage Analysis

Code coverage tells you which lines of script (or set of scripts) have been executed during a request. With this information you can for example find out how good your unit tests are.

» Profiling PHP Scripts

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.

» Remote Debugging

Xdebug provides an interface for debugger clients that interact with running PHP scripts. This section explains how to set-up PHP and Xdebug to allow this, and introduces a few clients.


Frequently Asked Questions

» All Configuration Settings
» All Functions

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