by WP Engine 2.7 (131 reviews)

PHP Compatibility Checker

Name: PHP Compatibility Checker
Rating: 2.7 (131 reviews)
Author: WP Engine

Make sure your plugins and themes are compatible with newer PHP versions.

PHP Compatibility Checker ranks #276 among WordPress.org plugins with 200,000+ active installations, a 2.7/5 rating from 131 reviews, and was last updated Jul 20, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Tested up to WP 6.4 (Current: 7.1)

v1.6.3 Current Version v1.6.3

Updated 1 month ago Last Update on 20 Jul, 2026

Refreshed 15 hours ago Last Refreshed on

Top 1% by installs Downloads -31.1% this week

View on WordPress.org

Rank

#276

— No change

Active Installs

200K+

-7.6%

KW Avg Position

— No change

Downloads

+79 today

Support Resolved

— No change

Rating

54%

Review 2.7 out of 5

2.7 (131 reviews)

Next Milestone 300K

Total Progress 11.4%

200K+ 300K+

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Rank Changes

Current #276

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

2.7

131 reviews

Overall 54%

46 (35%)

6 (5%)

2 (2%)

11 (8%)

66 (50%)

Security History

Source: WPVulnerability

1 known vulnerability on record · 0 in the last 24 months · checked 1 week ago

Apr 6, 2023

PHP Compatibility Checker [php-compatibility-checker] < 1.6.0

CVE-2023-24421 · Fixed in v1.6.0

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Plugin Details

Version: 1.6.3
Last Updated: Jul 20, 2026
Requires WP: 5.6+
Tested Up To: 6.4
PHP Version: 5.6 or higher
Author: WP Engine

Support & Rating

Rating: ★ ★ ★ ☆ ☆ 2.7
Reviews: 131
Support Threads: 0
Resolved: 0%

Keywords

compat php php 7 php 8 version

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TL;DR

AI summary of the plugin's readme

This plugin is for WordPress site owners and administrators who need to check PHP version compatibility for their themes and plugins. It scans installed theme and plugin code using Tide and reports compatibility errors and warnings, including file locations and reasons, so users can identify issues before upgrading PHP versions.

Lints theme and plugin code
Reports errors and warnings
Lists file and line numbers
Explains incompatibility reasons
Suggests theme/plugin updates
Uses Tide scanning service
Maintains false-positive whitelist
Checks compatibility up to PHP 8.0

Frequently Asked Questions

Common questions about PHP Compatibility Checker

Yes, this plugin can be used any ANY WordPress website on ANY host.

As of the 1.6.0 release this plugin no longer includes the phpcompat WP-CLI command. If you still require use of that command, then please run version 1.5.2 or older of this plugin as those versions extend WP-CLI and provide commands.

We maintain a whitelist of plugins that cause false positives. If your plugin shows up as incompatible but you think that is wrong, please open a GitHub issue on the project, or email wordpress@wpengine.com with info about your plugin and why you know it is compatible (you have automated tests, the failure is on backwards compatibility code paths, etc).

Yes! While you cannot use this WordPress plugin to test your non-WordPress projects, you can use the Open Source PHPCompatibility Library that this plugin is built on.

If your plugin or theme is not available on WordPress.org, then Tide will not be able to scan or return results of that plugin or theme. If your plugin or theme is available on WordPress.org, but Tide is not immediately returning results than it likely means Tide has not yet audited that plugin or theme and within a few minutes results should be available once Tide completes its audit.

As of version 1.6.0 of this plugin, there should no longer be issues of the scan getting stuck as it no longer runs on your WordPress host server. If you are seeing significantly slow or unresponsive results from a plugin or theme that is available on WordPress.org, then please open an issue with those details for the Tide team to investigate why that specific plugin or theme version is not appearing in the Tide results.

Yes! WP Engine has a public GitHub repo where you can contribute back to this plugin. Please open an issue on the Plugin GitHub. We actively develop this plugin, and are always happy to receive pull requests. 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.

PHP Compatibility Checker

Next Milestone 300K

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