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run code in 300+ PHP versions simultaneously
<?php class Obj { public $num; public function __construct($num) { $this->num = $num; } } $arr = array(new Obj(1),new Obj(2),new Obj(3)); var_dump($arr); $arr = array_diff($arr,array(new Obj(2))); var_dump($arr);

preferences:
35.07 ms | 402 KiB | 5 Q