- var_dump: documentation ( source)
- array_intersect: documentation ( source)
<?php
class A {
protected $i = 1;
public function __toString() {
$this->i++;
return (string) $this->i;
}
}
$a = new A;
var_dump($a);
$b = [100, $a];
var_dump(
$a,
array_intersect($b, $b),
$a
);