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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.
Built from https://develop.svn.wordpress.org/trunk@54384


git-svn-id: http://core.svn.wordpress.org/trunk@53943 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2022-10-04 15:41:18 +00:00
parent 4de88db482
commit 2ede19910a
2 changed files with 16 additions and 6 deletions
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20
wp-includes/class-wpdb.php
View File

@ -3960,17 +3960,27 @@ class wpdb {
* @return bool True when the database feature is supported, false otherwise.
*/
public function has_cap( $db_cap ) {
$version = $this->db_version();
$db_version = $this->db_version();
$db_server_info = $this->db_server_info();
// Account for MariaDB version being prefixed with '5.5.5-' on older PHP versions.
if ( '5.5.5' === $db_version && str_contains( $db_server_info, 'MariaDB' )
&& PHP_VERSION_ID < 80016 // PHP 8.0.15 or older.
) {
// Strip the '5.5.5-' prefix and set the version to the correct value.
$db_server_info = preg_replace( '/^5\.5\.5-(.*)/', '$1', $db_server_info );
$db_version = preg_replace( '/[^0-9.].*/', '', $db_server_info );
}
switch ( strtolower( $db_cap ) ) {
case 'collation': // @since 2.5.0
case 'group_concat': // @since 2.7.0
case 'subqueries': // @since 2.7.0
return version_compare( $version, '4.1', '>=' );
return version_compare( $db_version, '4.1', '>=' );
case 'set_charset':
return version_compare( $version, '5.0.7', '>=' );
return version_compare( $db_version, '5.0.7', '>=' );
case 'utf8mb4': // @since 4.1.0
if ( version_compare( $version, '5.5.3', '<' ) ) {
if ( version_compare( $db_version, '5.5.3', '<' ) ) {
return false;
}
if ( $this->use_mysqli ) {
@ -3990,7 +4000,7 @@ class wpdb {
return version_compare( $client_version, '5.5.3', '>=' );
}
case 'utf8mb4_520': // @since 4.6.0
return version_compare( $version, '5.6', '>=' );
return version_compare( $db_version, '5.6', '>=' );
case 'identifier_placeholders': // @since 6.1.0
/*
* As of WordPress 6.1, wpdb::prepare() supports identifiers via '%i',

2
wp-includes/version.php
View File

@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.1-beta2-54383';
$wp_version = '6.1-beta2-54384';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.