3v4l.org

run code in 300+ PHP versions simultaneously
<?php $list = "12,14,15,25,10"; $try = preg_match('/^\d(?:,\d)*$/',$list); echo $try;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Du8UG
function name:  (null)
number of ops:  8
compiled vars:  !0 = $list, !1 = $try
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '12%2C14%2C15%2C25%2C10'
    4     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E%5Cd%28%3F%3A%2C%5Cd%29%2A%24%2F'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !1, $3
    5     6        ECHO                                                     !1
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.39 ms | 1394 KiB | 15 Q