3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [0]; foreach ($array as &$val) { var_dump($val); $array[1] = 1; } $a = array('a' => 1, 'b' => 2); foreach($a as &$p) { $p += 1; } print_r($a);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 2, Position 2 = 9
Branch analysis from position: 2
2 jumps found. (Code = 126) Position 1 = 3, Position 2 = 9
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 9
2 jumps found. (Code = 125) Position 1 = 12, Position 2 = 15
Branch analysis from position: 12
2 jumps found. (Code = 126) 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: 9
filename:       /in/q1Y0I
function name:  (null)
number of ops:  20
compiled vars:  !0 = $array, !1 = $val, !2 = $a, !3 = $p
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1      > FE_RESET_RW                                      $5      !0, ->9
          2    > > FE_FETCH_RW                                              $5, !1, ->9
    4     3    >   INIT_FCALL                                               'var_dump'
          4        SEND_VAR                                                 !1
          5        DO_ICALL                                                 
    5     6        ASSIGN_DIM                                               !0, 1
          7        OP_DATA                                                  1
    3     8      > JMP                                                      ->2
          9    >   FE_FREE                                                  $5
    9    10        ASSIGN                                                   !2, <array>
   11    11      > FE_RESET_RW                                      $9      !2, ->15
         12    > > FE_FETCH_RW                                              $9, !3, ->15
   13    13    >   ASSIGN_OP                                     1          !3, 1
   11    14      > JMP                                                      ->12
         15    >   FE_FREE                                                  $9
   16    16        INIT_FCALL                                               'print_r'
         17        SEND_VAR                                                 !2
         18        DO_ICALL                                                 
         19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
166.53 ms | 1400 KiB | 17 Q