Sergey Biryukov fed98bd9ef Database: Correct MariaDB version check in wpdb::has_cap().
MariaDB version is reported differently between PHP versions:
* PHP 8.0.16 or later: `10.6.8-MariaDB`
* PHP 8.0.15 or earlier: `5.5.5-10.6.8-MariaDB`

The latter includes PHP 7.4.x and PHP 5.6.x as well, where the version is also reported with the `5.5.5-` prefix.

This commit makes an adjustment to `wpdb::has_cap()` to check for the correct MariaDB version.

This resolves an issue where the `utf8mb4_unicode_520_ci` collation, which is available in MariaDB since version 10.2, was previously not detected correctly.

References:
* [https://github.com/php/php-src/issues/7972 php-src: #7972: MariaDB version prefix 5.5.5- is not stripped]
* [https://github.com/php/php-src/pull/7963 php-src: PR #7963 Fix GH-7932: MariaDB version prefix not always stripped]
* [https://mariadb.com/docs/reference/mdb/collations/utf8mb4_unicode_520_ci/ MariaDB Documentation: utf8mb4_unicode_520_ci]

Follow-up to [37523], [53919].

Props jamieburchell, SergeyBiryukov.
Fixes #54841.

git-svn-id: https://develop.svn.wordpress.org/trunk@54384 602fd350-edb4-49c9-b593-d223f7449a82
2022-10-04 15:39:28 +00:00
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