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run code in 300+ PHP versions simultaneously
<?php class test { public $inner = NULL; protected $prot = 1; private $priv = 2; } $one = new test; $two = new test; $one->inner = $two; $two->inner = $one; for($i = 100; $i > 0; $i--) { $serialized = var_export($one,true); }

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38.72 ms | 402 KiB | 5 Q