3v4l.org

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

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
157.35 ms | 1394 KiB | 15 Q