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run code in 150+ php & hhvm versions
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<?php $s = '<iframe width="800"><embed width=300>fdgdfg</embed>sfsdfsdf</iframe>'; echo preg_replace_all('~(.*width=["]?)(\d+)(["]?.*)~', '${1}222${3}', $s);
based on 9jLp0
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function preg_replace_all() in /in/JXAsA:3 Stack trace: #0 {main} thrown in /in/JXAsA on line 3
Process exited with code 255.
Output for 5.0.0 - 5.6.28
Fatal error: Call to undefined function preg_replace_all() in /in/JXAsA on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: preg_replace_all() in /in/JXAsA on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: preg_replace_all() in /in/JXAsA on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: preg_replace_all() in /in/JXAsA on line 3