3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match('/(foo)(bar)(baz)/', null, $matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WQ1Pk
function name:  (null)
number of ops:  6
compiled vars:  !0 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2F%28foo%29%28bar%29%28baz%29%2F'
          2        SEND_VAL                                                 null
          3        SEND_REF                                                 !0
          4        DO_ICALL                                                 
          5      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.48 ms | 1008 KiB | 14 Q