- var_dump: documentation ( source)
- is_callable: documentation ( source)
<?php
class C {
public function __construct() {}
}
class C2 {
}
var_dump(is_callable(['C', '__construct']));
var_dump(is_callable(['C2', '__construct']));
var_dump(is_callable(['C', '__destruct']));
var_dump(is_callable(['C2', '__destruct']));