3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(&$array) { foreach ($array as $value) { var_dump($value); $array[1] = 'c'; } } $arr = array('a', 'b'); foo($arr);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/skZuC
function name:  (null)
number of ops:  5
compiled vars:  !0 = $arr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   ASSIGN                                                   !0, <array>
    9     1        INIT_FCALL                                               'foo'
          2        SEND_REF                                                 !0
          3        DO_FCALL                                      0          
          4      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 9
Branch analysis from position: 2
2 jumps found. (Code = 78) 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
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/skZuC
function name:  foo
number of ops:  11
compiled vars:  !0 = $array, !1 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    3     1      > FE_RESET_R                                       $2      !0, ->9
          2    > > FE_FETCH_R                                               $2, !1, ->9
    4     3    >   INIT_FCALL                                               'var_dump'
          4        SEND_VAR                                                 !1
          5        DO_ICALL                                                 
    5     6        ASSIGN_DIM                                               !0, 1
          7        OP_DATA                                                  'c'
    3     8      > JMP                                                      ->2
          9    >   FE_FREE                                                  $2
    7    10      > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
151.82 ms | 1397 KiB | 16 Q