maybe_create_table()

最后更新于：2021-11-27 14:41:53

Creates a table in the database, if it doesn’t already exist.

参数

$table_name

(string) (Required) Database table name.

$create_ddl

(string) (Required) SQL statement to create table.

响应

(bool) True on success or if the table already exists. False on failure.

源文件

文件: gc-admin/includes/upgrade.php

function maybe_create_table( $table_name, $create_ddl ) {
	global $gcdb;

	$query = $gcdb->prepare( 'SHOW TABLES LIKE %s', $gcdb->esc_like( $table_name ) );

	if ( $gcdb->get_var( $query ) === $table_name ) {
		return true;
	}

	// Didn't find it, so try to create it.
	$gcdb->query( $create_ddl );

	// We cannot directly tell that whether this succeeded!
	if ( $gcdb->get_var( $query ) === $table_name ) {
		return true;
	}

	return false;
}