Doctrine\DBAL\Platforms\MySqlPlatform::getLocateExpression PHP Method

    public function getLocateExpression($str, $substr, $startPos = false)
    {
        if ($startPos == false) {
            return 'LOCATE(' . $substr . ', ' . $str . ')';
        }
        return 'LOCATE(' . $substr . ', ' . $str . ', ' . $startPos . ')';
    }