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run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_replace('/([a-z]+)(?:-|$)/g','this-is-a-string', '\F1');
Output for 4.3.11 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_replace(): Unknown modifier 'g' in /in/3StEj on line 4
Output for hhvm-3.12.0
Warning: Unknown modifier 'g': [/([a-z]+)(?:-|$)/g] in /in/3StEj on line 4
Output for hhvm-3.10.0
Warning: Unknown modifier 'g': [/([a-z]+)(?:-|$)/g] in /in/3StEj on line 8
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier 'g' in /in/3StEj on line 4