Census › Plugin profiles › PHP Compatibility Checker
PHP Compatibility Checker
Figures from the Plugin Directory Census · as of 28 Aug 2026
200,000
Active installs, lower bound
Group: 100,000 to 999,999 installs
39
Days since the last release
Group median: 12
2.7
out of 5, from 131 ratings
Group median: 4.7 (10+ ratings)
no threads
Support threads, two months
Group: 68.2%
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What is PHP Compatibility Checker and who is behind it?
PHP Compatibility Checker is a WordPress plugin in the “Admin and backup” category, made by WP Engine. It has been listed in the directory for 10 years, since 29 Jun 2016. WP Engine has 7 plugins with at least 10,000 installs in the census. With 200,000 to 299,999 active installs it sits in the group of plugins with 100,000 to 999,999 installs; its last release came 39 days before the reference date, and it is tested up to WordPress 6.4.
This is how the author describes the plugin on wordpress.org:
“Make sure your plugins and themes are compatible with newer PHP versions.”
Self-description on wordpress.org, retrieved on 10 Sep 2026
When was PHP Compatibility Checker last released?
The last release of PHP Compatibility Checker came 39 days before the reference date; the group median is 12 days.
How many installs does PHP Compatibility Checker have?
PHP Compatibility Checker had 200,000 to 299,999 active installs on the reference date. Within its group, 139 plugins had a higher band and 79 plugins the same band.
The API reports installs only as a lower bound with one significant digit: 200,000 means at least 200,000 and at most 299,999.
Which WordPress version is PHP Compatibility Checker tested with?
On the reference date the plugin page on wordpress.org showed the notice “This plugin hasn’t been tested with the latest 3 major releases of WordPress”, because the “tested up to” field was below 6.9 (6.4). The notice describes only that field; it does not say whether the plugin runs on newer versions. 8.0% of the group carried it.
How does PHP Compatibility Checker compare with its group?
The group holds 399 listed plugins. 69.2% of them had a more recent last release than PHP Compatibility Checker; 5.3% had no release for more than 365 days.
| Metric | PHP Compatibility Checker | Group, 399 plugins |
|---|---|---|
| Days since the last release | 39 | median 12 |
| Rating | 2.7 (131) | median 4.7 (10+ ratings) |
| Support threads marked resolved | not stated | 68.2% |
| Tested up to | 6.4 | 47.6% on 7.1 |
| Requires PHP | 5.6 | most often 7.4 (41.6%) |
All values on the reference date
| Slug | php-compatibility-checker |
|---|---|
| Author | WP Engine |
| Active installs | 200,000 to 299,999 |
| Last release | 39 days before the reference date |
| Tested up to | WordPress 6.4 · core on the reference date: 7.1 |
| Requires WordPress | 5.6 |
| Requires PHP | 5.6 |
| Rating | 2.7 out of 5 from 131 ratings |
| Support threads, two months | none in the window |
| Listed since | 29 Jun 2016 |
| Total downloads | 3,045,366, updates included |
| Tags | compat, php, php-7, php-8, version |
Tags
| Tag | Plugins with 10,000+ installs and this tag | Rank by installs | Median days since release |
|---|---|---|---|
| compat | 1 | 1 | 39 |
| php | 15 | 3 | 39 |
| php-7 | 1 | 1 | 39 |
| php-8 | 1 | 1 | 39 |
| version | 6 | 2 | 770 |
Rank 1 has the highest installation band among plugins with 10,000+ installs and this tag; equal bands share a rank.
Class of 2016
PHP Compatibility Checker has been listed since 29 Jun 2016. Of the 200 plugins with 10,000+ installs added in 2016, 87.0% had a release within the 365 days before the reference date.
Same group, shared tags
Not a recommendation; the same figures for comparison. Alphabetical.
| Plugin | Active installs | Last release | Rating |
|---|---|---|---|
| Code Snippets | 1,000,000 to 1,999,999 | on the reference date | 4.7 (509) |
| PHP Code Widget | 70,000 to 79,999 | 1,612 days before the reference date | 4.7 (61) |
| WP Downgrade | 100,000 to 199,999 | 1,208 days before the reference date | 4.8 (169) |
| WP Rollback | 300,000 to 399,999 | 121 days before the reference date | 4.9 (215) |
| WPCode | 3,000,000 to 3,999,999 | 1 day before the reference date | 4.9 (1,872) |
Do you maintain PHP Compatibility Checker?
If you maintain PHP Compatibility Checker, you can link to this profile, for example from your readme or your website. Both snippets show this badge:
HTML
<a href="https://hafenstudios.com/en/census/plugins/php-compatibility-checker/"><img src="https://hafenstudios.com/census/plugins/badge-en.svg" alt="PHP Compatibility Checker in the Plugin Directory Census 01/2026" width="220" height="40"></a>
Markdown
[](https://hafenstudios.com/en/census/plugins/php-compatibility-checker/)
The image is loaded from hafenstudios.com; as with every request, our server records the usual access data, which is deleted after 14 days. If you prefer not to, use a plain text link.
Spotted a value that is wrong? Write to moin@hafenstudios.com; a documented correction leads to a new version.
How to cite
hafenstudios (2026): PHP Compatibility Checker, profile in the Plugin Directory Census 01/2026, reference date 28 Aug 2026. https://hafenstudios.com/en/census/plugins/php-compatibility-checker/
Source and reference date
All values come from a complete retrieval of the public wordpress.org API on 28 Aug 2026 (reference time 21:56:30 UTC). The analysis and text on this page are available under CC BY 4.0; the raw values come from the public wordpress.org API and are in the raw data. How the count was made is set out in the method, what the fields do not say under limits. hafenstudios builds WordPress plugins itself; see the conflict of interest. Corrections to moin@hafenstudios.com; a documented correction leads to a new version. From issue 02 this page will also show the change since the previous reference date. Collected and prepared by Horst Wenzel.
Plugin names and trademarks belong to their owners. hafenstudios is not affiliated with the authors named here.
