PHP Compatibility Checker

Wordpress Plugin
Download latest - 1.5.2

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stevenkword
octalmage
wpengine

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The WP Engine PHP Compatibility Checker can be used by any WordPress website on any web host to check PHP version compatibility.

This plugin will lint theme and plugin code inside your WordPress file system and give you back a report of compatibility issues for you to fix. Compatibility issues are categorized into errors and warnings and will list the file and line number of the offending code, as well as the info about why that line of code is incompatible with the chosen version of PHP. The plugin will also suggest updates to themes and plugins, as a new version may offer compatible code.

This plugin does not execute your theme and plugin code, as such this plugin cannot detect runtime compatibility issues.

Please note that linting code is not perfect. This plugin cannot detect unused code-paths that might be used for backwards compatibility, and thus might show false positives. We maintain a whitelist of plugins that can cause false positives. We are continuously working to ensure the checker provides the most accurate results possible.

This plugin relies on WP-Cron to scan files in the background. The scan will get stuck if the site's WP-Cron isn't running correctly. Please see the FAQ for more information.

Update to PHP 7.3

  • Use this plugin to check your site for compatibility up to PHP 7.3!
  • As of July 2019, 20.1% of WordPress websites run a PHP version older than PHP 5.6.
  • These versions of PHP have been deprecated and unsupported for over 2 years.
  • Only 54.1% of WordPress websites run PHP 7, the current main version of PHP.

Disclaimer

While this plugin is written to detect as many problems as accurately as possible, 100% reliable detection is very difficult to ensure. It is best practice to run comprehensive tests before you migrate to a new PHP version.

The plugin was created by WP Engine to help the WordPress community increase adoption of modern PHP versions. We welcome contributors to this plugin, and are excited to see how developers and other WordPress hosts use this plugin.

To disclose security issues for this plugin please email WordPress@wpengine.com


Releases (24 )

Version Release Date Change Log
1.5.2 2021-09-28
  • Removed PHP 5.2 checks
  • Fixed PHP 8 issue where plugin cannot cannot be uninstalled.
1.5.0 2019-07-30
  • Added support for PHP 7.3 compatibility checks
1.4.7 2019-01-16
1.4.6 2018-08-14
  • Switched to new PHPCompatibilityWP library to help prevent false positives.
1.4.5 2018-01-18
  • Use plugin version number to enqueue scripts and styles.
1.4.4 2018-01-15
  • PHP 5.2 Support & PHP 7.1 and 7.2 Lints.
  • Updated call to action sidebar depending on platform.
1.4.3 2018-01-15
  • Fixed Composer issue.
1.4.1 2017-07-31
  • Updated PHP_CodeSniffer to fix a security advisory.
  • Whitelisted a number of plugins.
1.4.0 2017-02-16
  • Updated UX for viewing PHP errors to be more intuitive and require less scrolling.
  • Added links for non-technical users who need assistance from developers to fix PHP errors or to test their site in PHP 7 enabled hosting environments.
1.3.2 2017-01-04
  • Added a "Clean up" button and uninstall.php.
  • Added phpcompat_phpversions filter.
1.3.1 2016-12-09
  • Whitelisted a number of plugins.
1.3.0 2016-11-04
  • Updated the PHPCompatibility library to latest version. Should fix many false positives.
  • Changed language and added help text to Admin UI.
1.2.4 2016-10-28
  • Fixed Composer issue.
1.2.3 2016-10-28
  • Updated the PHPCompatibility library to latest version.
  • Whitelisted TablePress.
1.2.2 2016-10-10
  • Whitelisted UpdraftPlus and Max Mega Menu.
1.2.1 2016-10-02
  • Updated the PHPCompatibility library to latest version
1.2.0 2016-08-18
  • Updated the PHPCompatibility library to latest version
  • Added support for PHP 5.6
1.1.2 2016-07-22
  • Fixed issue with WordPress notices breaking the plugin header.
  • Changed the way we send and parse JSON.
  • You can now restart an in progress scan.
  • Updated download.js to v4.2 for better Safari compatibility.
1.1.1 2016-07-18
  • Fixed bug with active job display.
  • Updated progress bar calculation.
1.1.0 2016-07-18
  • Test results now persist page reloads.
  • Failed tests will show an overview of the results.
  • The scan timeout is now configurable using a filter. See the FAQ for more details.
1.0.3 2016-07-13
  • Fixed a bug in the WP-CLI command
  • Added a handful of PHP 7 compatible plugins to the whitelist
1.0.2 2016-07-08
  • Added additional role protections
  • Changed the UI colors to better understand output at a glance
  • Exclude checking node_modules and tmp directories
  • Added support for child theme's parent theme
1.0.1 2016-07-04
  • Updated compatibility library with a few bugfixes
  • Added skip logic to prevent checker from hanging
1.0.0 2016-06-29
  • Major update to add PHP 7 checking support
  • Improved the UX of the progress bar
  • Fixed bug with the way the plugin menu was registered