3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = (object) array('' => '1'); foreach ($foo as $k=>$v) { echo "['$k'->'$v']\n"; } foreach ($foo as $k=>$v) { echo $foo->{$k}; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 12
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 12
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 12
2 jumps found. (Code = 77) Position 1 = 14, Position 2 = 19
Branch analysis from position: 14
2 jumps found. (Code = 78) Position 1 = 15, Position 2 = 19
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 14
Branch analysis from position: 14
Branch analysis from position: 19
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 19
Branch analysis from position: 12
filename:       /in/NZMlM
function name:  (null)
number of ops:  21
compiled vars:  !0 = $foo, !1 = $v, !2 = $k
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   CAST                                          8  ~3      <array>
          1        ASSIGN                                                   !0, ~3
    3     2      > FE_RESET_R                                       $5      !0, ->12
          3    > > FE_FETCH_R                                       ~6      $5, !1, ->12
          4    >   ASSIGN                                                   !2, ~6
    4     5        ROPE_INIT                                     5  ~9      '%5B%27'
          6        ROPE_ADD                                      1  ~9      ~9, !2
          7        ROPE_ADD                                      2  ~9      ~9, '%27-%3E%27'
          8        ROPE_ADD                                      3  ~9      ~9, !1
          9        ROPE_END                                      4  ~8      ~9, '%27%5D%0A'
         10        ECHO                                                     ~8
    3    11      > JMP                                                      ->3
         12    >   FE_FREE                                                  $5
    6    13      > FE_RESET_R                                       $12     !0, ->19
         14    > > FE_FETCH_R                                       ~13     $12, !1, ->19
         15    >   ASSIGN                                                   !2, ~13
    7    16        FETCH_OBJ_R                                      ~15     !0, !2
         17        ECHO                                                     ~15
    6    18      > JMP                                                      ->14
         19    >   FE_FREE                                                  $12
    8    20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.17 ms | 1394 KiB | 13 Q