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<?php class T { private $allowed = 0; function __destruct() { if ($this->allowed == 1) echo "SUCCESS"; } }; $a = T(); print($a); //$data = 'O:1:"T":2:{s:10:"Tallowed";i:1;s:10:"Tallowen";i:1;}'; var_dump(unserialize($data)); ?>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Call to undefined function T() in /in/0v5P5:8 Stack trace: #0 {main} thrown in /in/0v5P5 on line 8
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Call to undefined function T() in /in/0v5P5 on line 8
Process exited with code 255.

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