3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,3); foreach ($a as &$b) { $b++; } foreach ($a as $b) { echo $b; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 2, Position 2 = 5
Branch analysis from position: 2
2 jumps found. (Code = 126) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 5
2 jumps found. (Code = 77) Position 1 = 7, Position 2 = 10
Branch analysis from position: 7
2 jumps found. (Code = 78) Position 1 = 8, Position 2 = 10
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
Branch analysis from position: 5
filename:       /in/UJTaN
function name:  (null)
number of ops:  12
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1      > FE_RESET_RW                                      $3      !0, ->5
          2    > > FE_FETCH_RW                                              $3, !1, ->5
    5     3    >   PRE_INC                                                  !1
    3     4      > JMP                                                      ->2
          5    >   FE_FREE                                                  $3
    7     6      > FE_RESET_R                                       $5      !0, ->10
          7    > > FE_FETCH_R                                               $5, !1, ->10
    9     8    >   ECHO                                                     !1
    7     9      > JMP                                                      ->7
         10    >   FE_FREE                                                  $5
   10    11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
165.42 ms | 1393 KiB | 13 Q