3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = [1, 2, 3]; foreach ($arr2 = $arr1 as &$value) { $value *= 2; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 3, Position 2 = 6
Branch analysis from position: 3
2 jumps found. (Code = 126) 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
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
filename:       /in/6SXAv
function name:  (null)
number of ops:  8
compiled vars:  !0 = $arr1, !1 = $arr2, !2 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        ASSIGN                                           ~4      !1, !0
          2      > FE_RESET_RW                                      $5      ~4, ->6
          3    > > FE_FETCH_RW                                              $5, !2, ->6
    6     4    >   ASSIGN_OP                                     3          !2, 2
    5     5      > JMP                                                      ->3
          6    >   FE_FREE                                                  $5
    7     7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
297.52 ms | 1009 KiB | 13 Q