W3cubDocs

/WordPress

wpdb::db_version()

Retrieves the MySQL server version.

Return

(string|null) Version number on success, null on failure.

Source

File: wp-includes/wp-db.php 

public function db_version() {
		return preg_replace( '/[^0-9.].*/', '', $this->db_server_info() );
	}

Uses

Uses Description
wp-includes/wp-db.php: wpdb::db_server_info()

Retrieves full MySQL server information.

Used By

Used By Description
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::should_update()

Tests to see if we can and should update a specific item.
wp-admin/includes/update-core.php: update_core()

Upgrades the core of WordPress.
wp-admin/update-core.php: list_core_update()

Lists available core updates.
wp-includes/update.php: wp_version_check()

Check WordPress version against the newest version.
wp-includes/wp-db.php: wpdb::check_database_version()

Determines whether MySQL database is at least the required minimum version.
wp-includes/wp-db.php: wpdb::has_cap()

Determines if a database supports a particular feature.

Changelog

Version Description
2.7.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wpdb/db_version