is_int and GET or POST

Question

Why does is_int always return false in the following situation?

echo $_GET[\'id\']; //3
if(is_int($_GET[\'id\']))
    echo \'int\'; //not execut         


        

Answer 1

Prabably best way to check if value from GET or POST is integer is check by preg_match

if( preg_match('/^[0-9]+$/', $_GET['id'] ){
   echo "is int";
}