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<?php
namespace WPMailSMTP\Helpers;
/**
* Class for Database functionality.
*
* @since 3.6.0
*/
class DB {
/**
* The function is used to check if the given index exists in the given table.
*
* @since 3.6.0
*
* @param string $table The table name.
* @param string $index The index name.
*
* @return bool If index exists then return true else returns false.
*/
public static function index_exists( $table, $index ) {
global $wpdb;
$query = $wpdb->prepare(
'SELECT COUNT(1) IndexIsThere
FROM INFORMATION_SCHEMA.STATISTICS
WHERE table_schema = DATABASE()
AND table_name = %s
AND index_name = %s',
$table,
$index
);
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared
$result = $wpdb->get_var( $query );
return $result === '1';
}
}