mysql sample limit clause generation

mysql-sample-limit-clause.php

<?php

    $pageNo = isset($limitParams['_ticketPage']) ? (int)$limitParams['_ticketPage'] : 1;

    if($pageNo < 1) {
        $pageNo = 1;
    }

    $recordsNo = isset($limitParams['_ticketRecords']) ? (int)$limitParams['_ticketRecords'] : 20;

    if($recordsNo < 1) {
        $recordsNo = 1;
    }

    $offset = ($pageNo - 1) * $recordsNo;

    $limitClause = " limit {$offset},{$recordsNo}";