3v4l.org

run code in 500+ PHP versions simultaneously
<?php define('’a’', 'example'); $foo = array('example' => 'OK'); var_dump($foo[’a’]); $foo = array('b' => 'OK'); var_dump($foo[’b’]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/oHvKe
function name:  (null)
number of ops:  17
compiled vars:  !0 = $foo
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'define'
          1        SEND_VAL                                                     '%E2%80%99a%E2%80%99'
          2        SEND_VAL                                                     'example'
          3        DO_ICALL                                                     
    4     4        ASSIGN                                                       !0, <array>
    5     5        INIT_FCALL                                                   'var_dump'
          6        FETCH_CONSTANT                                       ~3      '%E2%80%99a%E2%80%99'
          7        FETCH_DIM_R                                          ~4      !0, ~3
          8        SEND_VAL                                                     ~4
          9        DO_ICALL                                                     
    7    10        ASSIGN                                                       !0, <array>
    8    11        INIT_FCALL                                                   'var_dump'
         12        FETCH_CONSTANT                                       ~7      '%E2%80%99b%E2%80%99'
         13        FETCH_DIM_R                                          ~8      !0, ~7
         14        SEND_VAL                                                     ~8
         15        DO_ICALL                                                     
         16      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
165.15 ms | 3392 KiB | 15 Q