WP_Site_Health::get_test_sql_server(): array

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Return value

array

The test results.

Performance profile

How much work a call to WP_Site_Health::get_test_sql_server() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reads or writes the filesystem via file_exists().

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

53–132

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 135.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• filesystemfilesystem accessfile_exists()called directly
• hookthird-party callbacksapply_filters()one call below WP_Site_Health::get_test_sql_server()

Further down the call graph this can also reach query, option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 16 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Site_Health::get_test_sql_server() can have, taken from its control-flow graph on PHP 8.5.

Uses · 4

• __()Retrieves the translation of $text.
• esc_url()Checks and cleans a URL.
• wp_kses()Filters text content and strips out disallowed HTML.
• WP_Site_Health::prepare_sql_data()Runs the SQL version checks.

Source code

View on Trac ↗View on GitHub ↗

1204	public function get_test_sql_server() {1205		if ( ! $this->mysql_server_version ) {1206			$this->prepare_sql_data();1207		}1208 1209		$result = array(1210			'label'       => __( 'SQL server is up to date' ),1211			'status'      => 'good',1212			'badge'       => array(1213				'label' => __( 'Performance' ),1214				'color' => 'blue',1215			),1216			'description' => sprintf(1217				'<p>%s</p>',1218				__( 'The SQL server is a required piece of software for the database WordPress uses to store all your site&#8217;s content and settings.' )1219			),1220			'actions'     => sprintf(1221				'<p><a href="%s" target="_blank">%s<span class="screen-reader-text"> %s</span><span aria-hidden="true" class="dashicons dashicons-external"></span></a></p>',1222				/* translators: Localized version of WordPress requirements if one exists. */1223				esc_url( __( 'https://wordpress.org/about/requirements/' ) ),1224				__( 'Learn more about what WordPress requires to run.' ),1225				/* translators: Hidden accessibility text. */1226				__( '(opens in a new tab)' )1227			),1228			'test'        => 'sql_server',1229		);1230 1231		$db_dropin = file_exists( WP_CONTENT_DIR . '/db.php' );1232 1233		if ( ! $this->is_recommended_mysql_version ) {1234			$result['status'] = 'recommended';1235 1236			$result['label'] = __( 'Outdated SQL server' );1237 1238			$result['description'] .= sprintf(1239				'<p>%s</p>',1240				sprintf(1241					/* translators: 1: The database engine in use (MySQL or MariaDB). 2: Database server recommended version number. */1242					__( 'For optimal performance and security reasons, you should consider running %1$s version %2$s or higher. Contact your web hosting company to correct this.' ),1243					( $this->is_mariadb ? 'MariaDB' : 'MySQL' ),1244					$this->mysql_recommended_version1245				)1246			);1247		}1248 1249		if ( ! $this->is_acceptable_mysql_version ) {1250			$result['status'] = 'critical';1251 1252			$result['label']          = __( 'Severely outdated SQL server' );1253			$result['badge']['label'] = __( 'Security' );1254 1255			$result['description'] .= sprintf(1256				'<p>%s</p>',1257				sprintf(1258					/* translators: 1: The database engine in use (MySQL or MariaDB). 2: Database server minimum version number. */1259					__( 'WordPress requires %1$s version %2$s or higher. Contact your web hosting company to correct this.' ),1260					( $this->is_mariadb ? 'MariaDB' : 'MySQL' ),1261					$this->mysql_required_version1262				)1263			);1264		}1265 1266		if ( $db_dropin ) {1267			$result['description'] .= sprintf(1268				'<p>%s</p>',1269				wp_kses(1270					sprintf(1271						/* translators: 1: The name of the drop-in. 2: The name of the database engine. */1272						__( 'You are using a %1$s drop-in which might mean that a %2$s database is not being used.' ),1273						'<code>wp-content/db.php</code>',1274						( $this->is_mariadb ? 'MariaDB' : 'MySQL' )1275					),1276					array(1277						'code' => true,1278					)1279				)1280			);1281		}1282 1283		return $result;

Changelog

Introduced in 5.2.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 6.8.8 tag, from src/wp-admin/includes/class-wp-site-health.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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