3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "Mozilla/4.5 [en] (X11; U; Linux 2.2.9 i586)"; echo preg_match($str, ';');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0acB2
function name:  (null)
number of ops:  7
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'Mozilla%2F4.5+%5Ben%5D+%28X11%3B+U%3B+Linux+2.2.9+i586%29'
    5     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 '%3B'
          4        DO_ICALL                                         $2      
          5        ECHO                                                     $2
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.31 ms | 1393 KiB | 15 Q