PluginScout

PHP Compatibility Checker

by WP Engine · WordPress.org page · Website

v1.6.3 Tested up to WP 6.4.10 PHP 5.6+

PHP Compatibility Checker has 200,000+ active installs on WordPress.org and 3,047,862 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on July 20, 2026, tested up to WordPress 6.4.10.

PHP Compatibility Checker at a glance

Active installs
200,000+
Total downloads
3,047,862
Downloads, last 30 days
–
available after 30 days of tracking
30-day growth
–
tracking since September 4, 2026

Is PHP Compatibility Checker well maintained?

Support threads resolved
No open threads
nothing waiting on the WordPress.org forum
WordPress compatibility
Behind
tested up to WordPress 6.4.10, not yet with the current 7.1
One-star reviews
50%
66 of 131 reviews on WordPress.org

Features

The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.

  • Use this plugin to check your site for compatibility up to PHP 8.0!
  • As of July 2022, 8.52% of WordPress websites run a PHP version older than PHP 7.0
  • These versions of PHP have been deprecated and unsupported for over 2 years
  • Only 7.1% of WordPress websites run PHP 8, the current main version of PHP

PHP Compatibility Checker reviews and ratings

131 reviews on WordPress.org, with the most recent ones as their authors posted them.

All reviews
2.7 out of 5

131 reviews

5★
46
4★
6
3★
2
2★
11
1★
66

  • Con WP5.1 y PHP7.4, falla

    Ell plugin no muestra versiones ni escanea

    manare

  • Why is this recommended by Wordpress?

    Over the years, I have tried to be careful to not install programs that are not kept up to date. Yet, Wordpress suggest that we install this outdated app that has not been updated for over 2 years. Many have reported errors. All just to test for the push that WP has for us to upgrade the version of PHP we are using. This doesn't make sense!I had tried to put a link to where WP suggest this, but strangely the forums won't even let me put a link to their own website.

    cweb

  • Ironically not compatible with the latest PHP

    Either update the plugin or take it down.

    aodigitalau

  • Rubish, get it offline

    It hangs like many others say. No replies on the forum. You're giving people false hope.Just get it offline and focus on your other plugins (which are working very well, btw); you'll do yourself and many others a favor.

    Okoth1

  • very buggy and hangs

    ran the plugin on quite a few sites and most timeout after a couple of plugins are tested. Lots of false positives and errors. surely there is a better plugin out there?

    theozsnowman

  • audit requested does not exist

    Useless! Gives a 404 error on plugins that ARE PHP 8 compatible. and then hangs. I've been waiting 30 minutes for it to unhang, and I finally gave up. It sure would be nice if this thing worked as advertised. Here's what I got: MaxButtons Pro 9.5.5 Response status: 404 Message: The audit requested does not exist. Am I supposed to know what that means? How do I fix it? Right now it's completely useless, and it hangs the software -- never goes any farther to get to the rest of my plugins. Not a bit of help as is.

    elffuts

PHP Compatibility Checker alternatives

Plugins that solve the same problem, ranked by how closely they overlap with PHP Compatibility Checker.

All PHP Compatibility Checker alternatives

Details

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

The full description, screenshots and every review live on the WordPress.org page.

Tags

  • compat
  • php
  • php 7
  • php 8
  • version

More from WP Engine

Version
1.6.3
Last updated
Jul 20, 2026
First published
Jun 29, 2016
Requires WordPress
5.6
Tested up to
6.4.10
Requires PHP
5.6
Pricing
Free on WordPress.org

PHP Compatibility Checker FAQ

What does PHP Compatibility Checker do?

According to its WordPress.org readme, PHP Compatibility Checker offers Use this plugin to check your site for compatibility up to PHP 8.0!, As of July 2022, 8.52% of WordPress websites run a PHP version older than PHP 7.0, These versions of PHP have been deprecated and unsupported for over 2 years and Only 7.1% of WordPress websites run PHP 8, the current main version of PHP.

How many active installs does PHP Compatibility Checker have?

WordPress.org reports 200,000+ active installs for PHP Compatibility Checker as of September 7, 2026.

Is PHP Compatibility Checker still maintained?

Yes. The last release was on July 20, 2026 and it is tested up to WordPress 6.4.10.

Is PHP Compatibility Checker free?

PHP Compatibility Checker is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.