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<?php var_dump(array_key_exists('foo', array('foo'=>'bar'))); var_dump(key_exists('foo', array('foo'=>'bar')));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/numrb
function name:  (null)
number of ops:  12
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        ARRAY_KEY_EXISTS                                 ~0      'foo', <array>
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
    3     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'key_exists'
          6        SEND_VAL                                                 'foo'
          7        SEND_VAL                                                 <array>
          8        DO_ICALL                                         $2      
          9        SEND_VAR                                                 $2
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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