3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = preg_match('/DD\-(\d{10})/', 'DD-1234567890'); var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VMFGQ
function name:  (null)
number of ops:  9
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2FDD%5C-%28%5Cd%7B10%7D%29%2F'
          2        SEND_VAL                                                 'DD-1234567890'
          3        DO_ICALL                                         $1      
          4        ASSIGN                                                   !0, $1
    3     5        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
160.19 ms | 1394 KiB | 17 Q