PHP Compatibility Checker v1.6.3
Make sure your plugins and themes are compatible with newer PHP versions.
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- Audit coverage Up to date 28 versions audited
- On Plugin Auditor since Sep 2, 2026
- Last audited Sep 2, 2026
Compatibility & requirements
The PHP and WordPress versions this plugin needs, and how current its version support is.
- Requires PHP 5.6+
- Requires WordPress 5.6+
- Tested up to WP 6.4 WP 7.1.3 is current
- Version adoption 85% run the current version
Audit scores by category
125 checksHow this plugin scores across the six areas we audit, from security to accessibility.
- 114 Passed
- 11 Warnings
- 0 Failed
35 of 37 checks passed.
54 of 61 checks passed.
12 of 12 checks passed.
6 of 6 checks passed.
3 of 3 checks passed.
4 of 6 checks passed.
Code footprint
How much code ships in this plugin, and the file types that make it up.
ZIP file size
27.5 KB
79.4 KB unzipped
Total files
7
across all file types
Lines of PHP
696
in 3 files Small
File types
- PHP
- CSS
- JS
- TXT
- Other
Top issues
The most important findings from the latest audit, ordered by severity.
- 0 Critical
- 1 High
- 7 Medium
- 47 Low
This is a preview of notable findings. Full file-level results, line numbers and code context are in the scan.
View full reportHow scores changed across versions
Across 28 audited versions of PHP Compatibility Checker, Compatibility improved the most (+17). The largest regression was in Accessibility (-16). The codebase shrank 7% in size.
Audited 1.0.0 → 1.6.3 · 28 versions
How issues changed across versions
Findings by severity for each audited version, so you can see which issues were fixed over time.
Download momentum
How fast this plugin is being installed lately, and whether that pace is rising or slowing.
Last 7 days
1,723
downloads
Today
321
downloads
Week over week
+3%
vs previous week
Month over month
+6%
vs previous month
Download trend: Growing. Abandonment risk: None.
Version intelligence
15% of installs run an older version
≈ 29.9K+ sites on a lower-scoring version.
- Other
- v1.5
- v1.6
Maintenance & history
How actively this plugin is kept up, from its last update to its release history.
Last updated
1 mo ago
Jul 20, 2026
Actively maintainedRelease cadence
~ every 25 days
average between releases
Total releases
28
since Jun 2016 · 10 yrs
Contributors & developers
The people credited with building and maintaining this plugin.
Running PHP Compatibility Checker in Your Site?
PHP Compatibility Checker and its trademarks are used only to identify the plugin analyzed and remain the property of their owners. This is an independent Plugin Auditor audit, not affiliated with, sponsored by, or endorsed by the plugin's developer. Metadata may come from WordPress.org; scores, findings, classifications, and visualizations are independently generated by Plugin Auditor. Full disclaimer.