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<?php $o = new ArrayObject(); if (array_key_exists('a', $o)) { echo "has-a"; } else { echo "NO-a"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 7
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2kVLe
function name:  (null)
number of ops:  9
compiled vars:  !0 = $o
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        ARRAY_KEY_EXISTS                                         'a', !0
          4      > JMPZ                                                     ~4, ->7
    5     5    >   ECHO                                                     'has-a'
    4     6      > JMP                                                      ->8
    7     7    >   ECHO                                                     'NO-a'
    8     8    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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