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run code in 150+ php & hhvm versions
Bugs & Features
<?php $matches = AH587910; preg_match( '#^AH\d{6}$#',$matches ); echo $matches[5]; // 1234
Output for 4.3.0 - 5.0.5, 5.1.1 - 7.1.0
Notice: Use of undefined constant AH587910 - assumed 'AH587910' in /in/JX4E4 on line 2 9
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/JX4E4 on line 4
Process exited with code 255.