3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = '12345,'; $result = substr($string, '', -1); print $result;
Output for 7.0.0 - 7.1.0
Warning: substr() expects parameter 2 to be integer, string given in /in/fGNcq on line 6
Output for 5.3.0 - 5.6.23
Warning: substr() expects parameter 2 to be long, string given in /in/fGNcq on line 6
Output for 4.3.0 - 5.2.17
12345