<?php$var = true; // mixed $var$bool = settype ( $var, // mixed &$var "string""array""bool""boolean""double""float""int""integer""null""object""string" ✓? // string $type);?>
$var = '1' $bool = true
'1'
true
#1
settype
(/* $var = "5bar" */ $var, "integer")
#2
(/* $var = true */ $var, "string")