3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = new ArrayObject(ArrayObject::STD_PROP_LIST); $x->a = 'abc'; echo ($s = $x->serialize()), "\n"; $x->unserialize($s); echo $x->serialize();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vaXBv
function name:  (null)
number of ops:  18
compiled vars:  !0 = $x, !1 = $s
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'ArrayObject'
          1        SEND_VAL_EX                                              1
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    4     4        ASSIGN_OBJ                                               !0, 'a'
          5        OP_DATA                                                  'abc'
    6     6        INIT_METHOD_CALL                                         !0, 'serialize'
          7        DO_FCALL                                      0  $6      
          8        ASSIGN                                           ~7      !1, $6
          9        ECHO                                                     ~7
         10        ECHO                                                     '%0A'
    8    11        INIT_METHOD_CALL                                         !0, 'unserialize'
         12        SEND_VAR_EX                                              !1
         13        DO_FCALL                                      0          
    9    14        INIT_METHOD_CALL                                         !0, 'serialize'
         15        DO_FCALL                                      0  $9      
         16        ECHO                                                     $9
         17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
180.71 ms | 1397 KiB | 13 Q