Php unable to determine userid avaibility with jQuery Validate -


hi have problem using jquery validate remote function php. try check user id query whether user id exist or not. alway show user in used.

here jquery validate code:

userid: {                     required: true,                     minlength: 5,                     remote : {                         url: "checkuserid.php",                         type: "post"                     }                 }, 

here php checking code:

<?php      include "session.php";      include 'dbconnect.php';       global $conn;       $requestedid  = $_post['userid'];       $query = "select * users _userid = '$requestedid'";      $result = sqlsrv_query($conn,$query);       $row_count = sqlsrv_num_rows($result);      if($row_count === false){          echo 'false';      }      else if($row_count >=0){          echo 'true';      } ?> 

anything did wrong in query? thanks

change if else condition.

if($row_count == 0){ echo 'true'; }else{ echo 'false'; } 

true = not exist, false = exist