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Site Health: Add some more MySQL information to the Site Health Info screen.

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This adds three values to the debug info in the Database section:

* Max allowed packet size
* Max connections number
* Query cache size

Props zodiac1978, donmhico, mukesh27, SergeyBiryukov.
Fixes #53845.
Built from https://develop.svn.wordpress.org/trunk@51522


git-svn-id: http://core.svn.wordpress.org/trunk@51133 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2021-08-01 14:02:00 +00:00
parent aa0ed0fcdd
commit 2a0191b901
2 changed files with 39 additions and 1 deletions
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38
wp-admin/includes/class-wp-debug-data.php
View File

@ -925,6 +925,21 @@ class WP_Debug_Data {
'private' => true,
);
$info['wp-database']['fields']['max_allowed_packet'] = array(
'label' => __( 'Max allowed packet size' ),
'value' => self::get_mysql_var( 'max_allowed_packet' ),
);
$info['wp-database']['fields']['max_connections'] = array(
'label' => __( 'Max connections number' ),
'value' => self::get_mysql_var( 'max_connections' ),
);
$info['wp-database']['fields']['query_cache_size'] = array(
'label' => __( 'Query cache size' ),
'value' => self::get_mysql_var( 'query_cache_size' ),
);
// List must use plugins if there are any.
$mu_plugins = get_mu_plugins();
@ -1444,6 +1459,29 @@ class WP_Debug_Data {
return $info;
}
/**
* Returns the value of a MySQL variable.
*
* @since 5.9.0
*
* @param string $var Name of the MySQL variable.
* @return string|null The variable value on success. Null if the variable does not exist.
*/
public static function get_mysql_var( $var ) {
global $wpdb;
$result = $wpdb->get_row(
$wpdb->prepare( 'SHOW VARIABLES LIKE %s', $var ),
ARRAY_A
);
if ( ! empty( $result ) && array_key_exists( 'Value', $result ) ) {
return $result['Value'];
}
return null;
}
/**
* Format the information gathered for debugging, in a manner suitable for copying to a forum or support ticket.
*

2
wp-includes/version.php
View File

@ -13,7 +13,7 @@
*
* @global string $wp_version
*/
$wp_version = '5.9-alpha-51521';
$wp_version = '5.9-alpha-51522';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.