3v4l.org

run code in 300+ PHP versions simultaneously
<?php $output=''; $section0=''; $temp = '$output=""; $section0 .= "<!-- TODO put into input pattern=\d+(,\d+)* -->"; return $section0; '; $output = eval($temp); echo $output; $output = eval($temp); echo $output;
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
<!-- TODO put into input pattern=\d+(,\d+)* --><!-- TODO put into input pattern=\d+(,\d+)* --><!-- TODO put into input pattern=\d+(,\d+)* -->

preferences:
250.86 ms | 406 KiB | 337 Q