3v4l.org

run code in 300+ PHP versions simultaneously
<?php $_SESSION_start(); $_SESSION['error']="666"; echo $_SESSION['error']; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/itSvr
function name:  (null)
number of ops:  9
compiled vars:  !0 = $_SESSION_start
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_DYNAMIC_CALL                                        !0
          1        DO_FCALL                                      0          
    4     2        FETCH_W                      global              $2      '_SESSION'
          3        ASSIGN_DIM                                               $2, 'error'
          4        OP_DATA                                                  '666'
    5     5        FETCH_R                      global              ~4      '_SESSION'
          6        FETCH_DIM_R                                      ~5      ~4, 'error'
          7        ECHO                                                     ~5
    6     8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.01 ms | 1392 KiB | 13 Q