php pagination getting error (Fatal Error:unspported operand types) -

i got error fatal error: unsupported operand types in line12 while doing pagination in page. please me how solve this

<?php  require_once("pagination.php");     $page=1;//default page     $limit=1;//records per page     $start=0;//starts displaying records 0     if(isset($_get['page']) && $_get['page']!=''){     $page=$_get['page'];     }     $start=($page-1)*$limit;     ?> 

try:

$start = (is_numeric($page) ? (int)$page : 0)*limit; 

how int instead string form?