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<?php $dom = new DOMDocument(); $root = $dom->createElement('html'); $dom->appendChild($root); $el1 = $dom->createElement('p1'); $el1->setAttribute("foo", "bar"); $el1->setAttribute('id', 'foo'); $el1->setIdAttribute('id', true); $root->appendChild($el1); $el2 = $dom->createElement('p2'); $el2->setAttribute('id', 'foo'); $el2->setIdAttribute('id', true); $root->appendChild($el2); unset($el1, $el2); $root->removeChild($dom->getElementById('foo')); var_dump($dom->getElementById('foo'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KLtuv
function name:  (null)
number of ops:  59
compiled vars:  !0 = $dom, !1 = $root, !2 = $el1, !3 = $el2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $4      'DOMDocument'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $4
    4     3        INIT_METHOD_CALL                                         !0, 'createElement'
          4        SEND_VAL_EX                                              'html'
          5        DO_FCALL                                      0  $7      
          6        ASSIGN                                                   !1, $7
    5     7        INIT_METHOD_CALL                                         !0, 'appendChild'
          8        SEND_VAR_EX                                              !1
          9        DO_FCALL                                      0          
    7    10        INIT_METHOD_CALL                                         !0, 'createElement'
         11        SEND_VAL_EX                                              'p1'
         12        DO_FCALL                                      0  $10     
         13        ASSIGN                                                   !2, $10
    8    14        INIT_METHOD_CALL                                         !2, 'setAttribute'
         15        SEND_VAL_EX                                              'foo'
         16        SEND_VAL_EX                                              'bar'
         17        DO_FCALL                                      0          
    9    18        INIT_METHOD_CALL                                         !2, 'setAttribute'
         19        SEND_VAL_EX                                              'id'
         20        SEND_VAL_EX                                              'foo'
         21        DO_FCALL                                      0          
   10    22        INIT_METHOD_CALL                                         !2, 'setIdAttribute'
         23        SEND_VAL_EX                                              'id'
         24        SEND_VAL_EX                                              <true>
         25        DO_FCALL                                      0          
   12    26        INIT_METHOD_CALL                                         !1, 'appendChild'
         27        SEND_VAR_EX                                              !2
         28        DO_FCALL                                      0          
   14    29        INIT_METHOD_CALL                                         !0, 'createElement'
         30        SEND_VAL_EX                                              'p2'
         31        DO_FCALL                                      0  $16     
         32        ASSIGN                                                   !3, $16
   15    33        INIT_METHOD_CALL                                         !3, 'setAttribute'
         34        SEND_VAL_EX                                              'id'
         35        SEND_VAL_EX                                              'foo'
         36        DO_FCALL                                      0          
   16    37        INIT_METHOD_CALL                                         !3, 'setIdAttribute'
         38        SEND_VAL_EX                                              'id'
         39        SEND_VAL_EX                                              <true>
         40        DO_FCALL                                      0          
   18    41        INIT_METHOD_CALL                                         !1, 'appendChild'
         42        SEND_VAR_EX                                              !3
         43        DO_FCALL                                      0          
   19    44        UNSET_CV                                                 !2
         45        UNSET_CV                                                 !3
   21    46        INIT_METHOD_CALL                                         !1, 'removeChild'
         47        INIT_METHOD_CALL                                         !0, 'getElementById'
         48        SEND_VAL_EX                                              'foo'
         49        DO_FCALL                                      0  $21     
         50        SEND_VAR_NO_REF_EX                                       $21
         51        DO_FCALL                                      0          
   23    52        INIT_FCALL                                               'var_dump'
         53        INIT_METHOD_CALL                                         !0, 'getElementById'
         54        SEND_VAL_EX                                              'foo'
         55        DO_FCALL                                      0  $23     
         56        SEND_VAR                                                 $23
         57        DO_ICALL                                                 
         58      > RETURN                                                   1

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