3v4l.org

run code in 500+ PHP versions simultaneously
<?php $object = new ArrayObject(); $object['foo'] = 'bar'; var_dump(array_key_exists('foo', $object));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B4ZhS
function name:  (null)
number of ops:  10
compiled vars:  !0 = $object
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   NEW                                                  $1      'ArrayObject'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $1
    4     3        ASSIGN_DIM                                                   !0, 'foo'
          4        OP_DATA                                                      'bar'
    5     5        INIT_FCALL                                                   'var_dump'
          6        ARRAY_KEY_EXISTS                                     ~5      'foo', !0
          7        SEND_VAL                                                     ~5
          8        DO_ICALL                                                     
          9      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
161.71 ms | 2247 KiB | 14 Q