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<?php $a=4554; var_dump(array_key_exists('0', (array)$a));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cpL2K
function name:  (null)
number of ops:  7
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 4554
    9     1        INIT_FCALL                                               'var_dump'
          2        CAST                                          7  ~2      !0
          3        ARRAY_KEY_EXISTS                                 ~3      '0', ~2
          4        SEND_VAL                                                 ~3
          5        DO_ICALL                                                 
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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