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run code in 300+ PHP versions simultaneously
<?php $res='<span style="font-size: 14px;">You are allowed to view <b>30</b> CVs per day. Today you have watched <b>3</b></span> <iframe src="https://docs.google.com/viewer?url=http://files.seaemploy.com/resume/5ee9e75861dc2a8d0ddf4a3b5e05044b.doc&amp;module=files&amp;embedded=true" width="100%" height="100%" style="border: none;"> </iframe>'; preg_match('#watched (\d+)#', $res, $match); var_dump($match);; //if(!preg_match('#watched (\d+)#', $res, $match) OR $match[1]>=30) throw new \Exception("Account limit", 2);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.2 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 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 - 7.2.33, 7.3.0 - 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
array(0) { }
Output for 5.1.1

Process exited with code 137.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/eC8f4 on line 7
Process exited with code 255.

preferences:
282.01 ms | 401 KiB | 354 Q