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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 function call, with arguments and invocation location to disk. Optionally also includes every variable assignment and return value for each function.
Profiling
Allows you, with the help of visualisation tools, to analyse the performance of your PHP application and find bottlenecks.
Code Coverage Analysis
To show which parts of your code base are executed when running unit tests with PHPUnit.

Projects


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Announcements


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Xdebug is made possible through the generous support of Xdebug's business-tier sponsors:

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