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run code in 200+ php & hhvm versions
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<?php $data = '%22%27%5C%00'; parse_str($data, $data); var_export($data);
based on IL39M
Output for 4.3.4 - 4.4.9, 5.4.0 - 7.2.0
array ( '"\'\\' => '', )
Output for 5.0.0 - 5.3.29
array ( '\\"\\\'\\\\' => '', )
Output for 4.3.0 - 4.3.3
array ( '"'\' => '', )