3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $re = '/([\D]+)|([\d]+)/'; $str = 'a74b8c0d3845e7'; preg_match_all($re, $str, $matches); print_r(array_combine(array_values(array_filter($matches[1])),array_filter($matches[2])));
Output for 5.2.0 - 7.1.0
Warning: array_combine(): Both parameters should have an equal number of elements in /in/Kf35k on line 6
Output for 5.0.0 - 5.1.6
Warning: array_combine(): Both parameters should have equal number of elements in /in/Kf35k on line 6
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_combine() in /in/Kf35k on line 6
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_combine() in /in/Kf35k on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_combine() in /in/Kf35k on line 6