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<?php $doc = new DOMDocument; $doc->loadHTML('<html><body id="x"><div id="y"></div></body></html>'); $body = $doc->getElementById('x'); $div = $doc->getElementById('y'); $body->removeChild($div); echo $doc->getElementById('y') ? $doc->getElementById('y')->tagName : 'null'; $div->setIdAttribute( 'id', true ); echo $doc->getElementById('y') ? $doc->getElementById('y')->tagName : 'null';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 21, Position 2 = 27
Branch analysis from position: 21
1 jumps found. (Code = 42) Position 1 = 28
Branch analysis from position: 28
2 jumps found. (Code = 43) Position 1 = 37, Position 2 = 43
Branch analysis from position: 37
1 jumps found. (Code = 42) Position 1 = 44
Branch analysis from position: 44
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 43
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 27
2 jumps found. (Code = 43) Position 1 = 37, Position 2 = 43
Branch analysis from position: 37
Branch analysis from position: 43
filename:       /in/GXaLf
function name:  (null)
number of ops:  46
compiled vars:  !0 = $doc, !1 = $body, !2 = $div
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $3      'DOMDocument'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $3
    4     3        INIT_METHOD_CALL                                         !0, 'loadHTML'
          4        SEND_VAL_EX                                              '%3Chtml%3E%3Cbody+id%3D%22x%22%3E%3Cdiv+id%3D%22y%22%3E%3C%2Fdiv%3E%3C%2Fbody%3E%3C%2Fhtml%3E'
          5        DO_FCALL                                      0          
    5     6        INIT_METHOD_CALL                                         !0, 'getElementById'
          7        SEND_VAL_EX                                              'x'
          8        DO_FCALL                                      0  $7      
          9        ASSIGN                                                   !1, $7
    6    10        INIT_METHOD_CALL                                         !0, 'getElementById'
         11        SEND_VAL_EX                                              'y'
         12        DO_FCALL                                      0  $9      
         13        ASSIGN                                                   !2, $9
    7    14        INIT_METHOD_CALL                                         !1, 'removeChild'
         15        SEND_VAR_EX                                              !2
         16        DO_FCALL                                      0          
    8    17        INIT_METHOD_CALL                                         !0, 'getElementById'
         18        SEND_VAL_EX                                              'y'
         19        DO_FCALL                                      0  $12     
         20      > JMPZ                                                     $12, ->27
         21    >   INIT_METHOD_CALL                                         !0, 'getElementById'
         22        SEND_VAL_EX                                              'y'
         23        DO_FCALL                                      0  $13     
         24        FETCH_OBJ_R                                      ~14     $13, 'tagName'
         25        QM_ASSIGN                                        ~15     ~14
         26      > JMP                                                      ->28
         27    >   QM_ASSIGN                                        ~15     'null'
         28    >   ECHO                                                     ~15
    9    29        INIT_METHOD_CALL                                         !2, 'setIdAttribute'
         30        SEND_VAL_EX                                              'id'
         31        SEND_VAL_EX                                              <true>
         32        DO_FCALL                                      0          
   10    33        INIT_METHOD_CALL                                         !0, 'getElementById'
         34        SEND_VAL_EX                                              'y'
         35        DO_FCALL                                      0  $17     
         36      > JMPZ                                                     $17, ->43
         37    >   INIT_METHOD_CALL                                         !0, 'getElementById'
         38        SEND_VAL_EX                                              'y'
         39        DO_FCALL                                      0  $18     
         40        FETCH_OBJ_R                                      ~19     $18, 'tagName'
         41        QM_ASSIGN                                        ~20     ~19
         42      > JMP                                                      ->44
         43    >   QM_ASSIGN                                        ~20     'null'
         44    >   ECHO                                                     ~20
         45      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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