3v4l.org

run code in 300+ PHP versions simultaneously
<?php $xs = array('y'); $ys = array(); foreach ($xs as $idX => $elemX) {} var_dump($idX, $elemX); foreach ($ys as $idY => $elemY) {} var_dump($idY, $elemY);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 6
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 6
2 jumps found. (Code = 77) Position 1 = 12, Position 2 = 15
Branch analysis from position: 12
2 jumps found. (Code = 78) Position 1 = 13, Position 2 = 15
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
Branch analysis from position: 15
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 15
Branch analysis from position: 6
filename:       /in/0cMDH
function name:  (null)
number of ops:  21
compiled vars:  !0 = $xs, !1 = $ys, !2 = $elemX, !3 = $idX, !4 = $elemY, !5 = $idY
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    6     2      > FE_RESET_R                                       $8      !0, ->6
          3    > > FE_FETCH_R                                       ~9      $8, !2, ->6
          4    >   ASSIGN                                                   !3, ~9
          5      > JMP                                                      ->3
          6    >   FE_FREE                                                  $8
    7     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !3
          9        SEND_VAR                                                 !2
         10        DO_ICALL                                                 
    9    11      > FE_RESET_R                                       $12     !1, ->15
         12    > > FE_FETCH_R                                       ~13     $12, !4, ->15
         13    >   ASSIGN                                                   !5, ~13
         14      > JMP                                                      ->12
         15    >   FE_FREE                                                  $12
   10    16        INIT_FCALL                                               'var_dump'
         17        SEND_VAR                                                 !5
         18        SEND_VAR                                                 !4
         19        DO_ICALL                                                 
         20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
149.96 ms | 1387 KiB | 15 Q