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run code in 300+ PHP versions simultaneously
<?php $return = 0x080200000143EF3A; echo system("cd bin;echo *"); ?>
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.3 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: system(): Unable to fork [cd bin;echo *] in /in/JpW7C on line 3
Output for 4.3.0, 5.4.39 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.24, 7.3.0 - 7.3.12, 7.4.0
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.38
* *
Output for 4.3.1 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
* *sh: 1: cd: can't cd to bin

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