- var_dump: documentation ( source)
- array_intersect: documentation ( source)
<?php
class A {
protected $i = 0;
public function __toString() {
var_dump(__METHOD__);
$this->i++;
return "$this->i";
}
}
$a = new A;
$b = ['100', $a];
var_dump(array_intersect($b, $b));