tryphp_func_var_settype.php:
<!DOCTYPE html> <html> <body> <?php $a = "32"; // string settype($a, "integer"); // $a is now integer $b = 32; // integer settype($b, "string"); // $b is now string $c = true; // boolean settype($c, "integer"); // $c is now integer (1) ?> </body> </html>