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<?php $array = ['Hello', 'World']; $innerIterator = (new ArrayObject($array))->getIterator(); var_dump($innerIterator->valid()); $iteratorIterator = new IteratorIterator($innerIterator); var_dump($iteratorIterator->valid());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tsm6N
function name:  (null)
number of ops:  22
compiled vars:  !0 = $array, !1 = $innerIterator, !2 = $iteratorIterator
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    4     1        NEW                                                  $4      'ArrayObject'
          2        SEND_VAR_EX                                                  !0
          3        DO_FCALL                                          0          
          4        INIT_METHOD_CALL                                             $4, 'getIterator'
          5        DO_FCALL                                          0  $6      
          6        ASSIGN                                                       !1, $6
    5     7        INIT_FCALL                                                   'var_dump'
          8        INIT_METHOD_CALL                                             !1, 'valid'
          9        DO_FCALL                                          0  $8      
         10        SEND_VAR                                                     $8
         11        DO_ICALL                                                     
    7    12        NEW                                                  $10     'IteratorIterator'
         13        SEND_VAR_EX                                                  !1
         14        DO_FCALL                                          0          
         15        ASSIGN                                                       !2, $10
    8    16        INIT_FCALL                                                   'var_dump'
         17        INIT_METHOD_CALL                                             !2, 'valid'
         18        DO_FCALL                                          0  $13     
         19        SEND_VAR                                                     $13
         20        DO_ICALL                                                     
         21      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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