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<?php $params = new ArrayObject(array('foo' => null)); $test = $params->offsetExists('foo'); var_dump($test);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0pFDf
function name:  (null)
number of ops:  12
compiled vars:  !0 = $params, !1 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'ArrayObject'
          1        SEND_VAL_EX                                              <array>
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    3     4        INIT_METHOD_CALL                                         !0, 'offsetExists'
          5        SEND_VAL_EX                                              'foo'
          6        DO_FCALL                                      0  $5      
          7        ASSIGN                                                   !1, $5
    4     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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