3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = array("1", "2", "3", "4"); foreach($test as $value) { echo $value.PHP_EOL; $value = 1; } foreach($test as &$value) { echo $value.PHP_EOL; $value = 1; } foreach($test as $value) { echo $value.PHP_EOL; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 7
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 7
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 7
2 jumps found. (Code = 125) Position 1 = 9, Position 2 = 14
Branch analysis from position: 9
2 jumps found. (Code = 126) Position 1 = 10, Position 2 = 14
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
Branch analysis from position: 14
2 jumps found. (Code = 77) Position 1 = 16, Position 2 = 20
Branch analysis from position: 16
2 jumps found. (Code = 78) Position 1 = 17, Position 2 = 20
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
Branch analysis from position: 20
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
Branch analysis from position: 14
Branch analysis from position: 7
filename:       /in/Uh92Z
function name:  (null)
number of ops:  22
compiled vars:  !0 = $test, !1 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1      > FE_RESET_R                                       $3      !0, ->7
          2    > > FE_FETCH_R                                               $3, !1, ->7
    6     3    >   CONCAT                                           ~4      !1, '%0A'
          4        ECHO                                                     ~4
    7     5        ASSIGN                                                   !1, 1
    5     6      > JMP                                                      ->2
          7    >   FE_FREE                                                  $3
   10     8      > FE_RESET_RW                                      $6      !0, ->14
          9    > > FE_FETCH_RW                                              $6, !1, ->14
   11    10    >   CONCAT                                           ~7      !1, '%0A'
         11        ECHO                                                     ~7
   12    12        ASSIGN                                                   !1, 1
   10    13      > JMP                                                      ->9
         14    >   FE_FREE                                                  $6
   15    15      > FE_RESET_R                                       $9      !0, ->20
         16    > > FE_FETCH_R                                               $9, !1, ->20
   16    17    >   CONCAT                                           ~10     !1, '%0A'
         18        ECHO                                                     ~10
   15    19      > JMP                                                      ->16
         20    >   FE_FREE                                                  $9
   17    21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
162.75 ms | 1386 KiB | 13 Q