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<?php $x = null; var_dump(array_key_exists('x', $GLOBALS)); var_dump(array_key_exists('y', $GLOBALS));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Sl8Wi
function name:  (null)
number of ops:  12
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    5     1        INIT_FCALL                                               'var_dump'
          2        FETCH_GLOBALS                                    ~2      
          3        ARRAY_KEY_EXISTS                                 ~3      'x', ~2
          4        SEND_VAL                                                 ~3
          5        DO_ICALL                                                 
    6     6        INIT_FCALL                                               'var_dump'
          7        FETCH_GLOBALS                                    ~5      
          8        ARRAY_KEY_EXISTS                                 ~6      'y', ~5
          9        SEND_VAL                                                 ~6
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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