3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_match("/http:\/\/webseclab-vm\//", "foohttp:/webseclab-vm/bar"); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0cm3B
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2Fhttp%3A%5C%2F%5C%2Fwebseclab-vm%5C%2F%2F'
          2        SEND_VAL                                                 'foohttp%3A%2Fwebseclab-vm%2Fbar'
          3        DO_ICALL                                         $0      
          4        ECHO                                                     $0
    3     5      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.23 ms | 1393 KiB | 15 Q