WordPress at a glance
function is not described

wpdb::check_database_version() public WP 2.5.0

Determines whether MySQL database is at least the required minimum version.

{} It's a method of the class: wpdb{}

No Hooks.

Return

null/WP_Error.

Usage

global $wpdb;
$wpdb->check_database_version();

Notes

  • Global. String. $wp_version The WordPress version string.
  • Global. String. $required_mysql_version The required MySQL version string.

Changelog

Since 2.5.0 Introduced.

Code of wpdb::check_database_version() WP 5.5.1

<?php
public function check_database_version() {
	global $wp_version, $required_mysql_version;
	// Make sure the server has the required MySQL version.
	if ( version_compare( $this->db_version(), $required_mysql_version, '<' ) ) {
		/* translators: 1: WordPress version number, 2: Minimum required MySQL version number. */
		return new WP_Error( 'database_version', sprintf( __( '<strong>Error</strong>: WordPress %1$s requires MySQL %2$s or higher' ), $wp_version, $required_mysql_version ) );
	}
}