3v4l.org

run code in 300+ PHP versions simultaneously
<?php $_ = serialize($GLOBALS); $_G = unserialize($_); echo serialize($_) . "\n\n"; echo serialize($GLOBALS);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/I8qpe
function name:  (null)
number of ops:  20
compiled vars:  !0 = $_, !1 = $_G
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'serialize'
          1        FETCH_R                      global              ~2      'GLOBALS'
          2        SEND_VAL                                                 ~2
          3        DO_ICALL                                         $3      
          4        ASSIGN                                                   !0, $3
    5     5        INIT_FCALL                                               'unserialize'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $5      
          8        ASSIGN                                                   !1, $5
    9     9        INIT_FCALL                                               'serialize'
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                         $7      
         12        CONCAT                                           ~8      $7, '%0A%0A'
         13        ECHO                                                     ~8
   10    14        INIT_FCALL                                               'serialize'
         15        FETCH_R                      global              ~9      'GLOBALS'
         16        SEND_VAL                                                 ~9
         17        DO_ICALL                                         $10     
         18        ECHO                                                     $10
         19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
162.02 ms | 1394 KiB | 17 Q