Supported Versions and Compatibility
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2023-12-01
This page lists which versions of Xdebug are still supported, and with which versions of PHP they can be used.
PHP Version Support
This table lists which version of Xdebug is still supported, and which ones to use for older PHP versions. In general, at any point when an Xdebug version is released, it will support the currently supported PHP versions.
| PHP Version | Xdebug Version | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3.0 | 2.9 | 2.8 | 2.7 | 2.6 | 2.5 | 2.4 | 2.3 | 2.2 | |
| PHP 8.0 | ✔ | ||||||||
| PHP 7.4 | ✔ | ✔ | ✔ | ✔ | |||||
| PHP 7.3 | ✔ | ✔ | ✔ | ✔ | |||||
| PHP 7.2 | ✔ | ✔ | ✔ | ✔ | ✔ | ||||
| PHP 7.1 | ✔ | ✔ | ✔ | ✔ | ✔ | ||||
| PHP 7.0 | ✔ | ✔ | ✔ | ✔ | |||||
| PHP 5.6 | ✔ | ✔ | ✔ | ✔ | |||||
| PHP 5.5 | ✔ | ✔ | ✔ | ✔ | |||||
| PHP 5.4 | ✔ | ✔ | ✔ | ||||||
| PHP 5.3 | ✔ | ||||||||
| PHP 5.2 | ✔ | ||||||||
| Supported | Security Fixes | Unsupported | Future |
|---|
Compatibility
Xdebug does work together with the Zend Opcache, albeit with reducued or crippled functionality, as Opcache optimises out information that Xdebug could use.
Xdebug does not work together with other extensions that deal with PHP's internals (DBG, APD, ioncube etc). This is due to compatibility problems with those modules.