3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach ($_POST as $var => $value) { if (isset($$var)) continue; $$key = $value; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 10
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 10
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 7
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
filename:       /in/h7PeR
function name:  (null)
number of ops:  12
compiled vars:  !0 = $value, !1 = $var, !2 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   FETCH_R                      global              ~3      '_POST'
          1      > FE_RESET_R                                       $4      ~3, ->10
          2    > > FE_FETCH_R                                       ~5      $4, !0, ->10
          3    >   ASSIGN                                                   !1, ~5
          4        ISSET_ISEMPTY_VAR                             4          !1
          5      > JMPZ                                                     ~7, ->7
          6    > > JMP                                                      ->2
          7    >   FETCH_W                      local               $8      !2
          8        ASSIGN                                                   $8, !0
          9      > JMP                                                      ->2
         10    >   FE_FREE                                                  $4
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
158.72 ms | 1397 KiB | 13 Q