Is SEO Ultimate compatible with PHP 8.4 and 8.5?

Breaks on PHP 8.0

SEO Ultimate 7.6.5.9 uses PHP features that were removed in PHP 8.0. Sites running this version on PHP 8.0 or newer can show errors when that code runs.

PHP 8.0

✗ 6

PHP 8.1

✗ 6

PHP 8.2

✗ 6

PHP 8.3

✗ 6

PHP 8.4

✗ 6

PHP 8.5

✗ 6

✓ no problems · ⚠ deprecation notices only (still works) · ✗ uses something removed in that PHP version

Not updated for 10.0 years. Nobody seems to maintain this plugin, so problems found here are unlikely to be fixed. If your site uses it, look for a maintained alternative before upgrading PHP.

Check your whole site, not just one plugin. The free PHP Upgrade Check plugin scans every plugin and theme you have installed (including premium and custom ones) and explains each problem. It runs on any host.

What breaks on PHP 8.0

File:line	What
`includes/jlfunctions/arr.php:64`	Function create_function() is deprecated since PHP 7.2 and removed since PHP 8.0; Use an anonymous function instead
`includes/jlfunctions/arr.php:76`	Function create_function() is deprecated since PHP 7.2 and removed since PHP 8.0; Use an anonymous function instead
`includes/jlwp/functions.php:77`	Function create_function() is deprecated since PHP 7.2 and removed since PHP 8.0; Use an anonymous function instead
`modules/404s/fofs-log.php:60`	Extension 'mysql_' is deprecated since PHP 5.5 and removed since PHP 7.0; Use mysqli instead
`modules/404s/fofs-log.php:60`	Function mysql_query() is deprecated since PHP 5.5 and removed since PHP 7.0
`plugin/class.seo-ultimate.php:1656`	Function create_function() is deprecated since PHP 7.2 and removed since PHP 8.0; Use an anonymous function instead

Deprecated (works today, logs notices)

File:line	What
`modules/autolinks/content-autolinks.php:341`	Declaring an optional parameter before a required parameter is deprecated since PHP 8.0. Parameter $start_id is optional, while parameter $links is required. The $start_id parameter is implicitly treated as a required parameter.
`modules/autolinks/footer-autolinks.php:165`	Declaring an optional parameter before a required parameter is deprecated since PHP 8.0. Parameter $start_id is optional, while parameter $links is required. The $start_id parameter is implicitly treated as a required parameter.
`modules/internal-link-aliases/internal-link-aliases.php:95`	Declaring an optional parameter before a required parameter is deprecated since PHP 8.0. Parameter $start_id is optional, while parameter $aliases is required. The $start_id parameter is implicitly treated as a required parameter.

Plugin page on WordPress.org: seo-ultimate