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What is Xdebug?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. |
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| 2025-07-14 | Xdebug 3.4.5 is out! |
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Xdebug CloudXdebug Cloud is a Proxy-as-a-Service, which can help you with complexities with regards to networking. A common use case is having multiple developers, who share a common development server on private network, while working in a remote location.
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