3v4l.org

run code in 300+ PHP versions simultaneously
<?php if($something['123'] != 1) { echo 'good'; } else { echo 'bad'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UacGh
function name:  (null)
number of ops:  7
compiled vars:  !0 = $something
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   FETCH_DIM_R                                      ~1      !0, 123
          1        IS_NOT_EQUAL                                             ~1, 1
          2      > JMPZ                                                     ~2, ->5
    3     3    >   ECHO                                                     'good'
          4      > JMP                                                      ->6
    6     5    >   ECHO                                                     'bad'
    8     6    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
146.04 ms | 1384 KiB | 13 Q