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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 '1: ' . ( $doc->getElementById('y') ? $doc->saveHTML( $doc->getElementById('y') ) : 'null' ) .PHP_EOL; // <div id="y"> unset($div); echo '2: ' . ( $doc->getElementById('y') ? $doc->saveHTML( $doc->getElementById('y') ) : 'null' ) .PHP_EOL; // null
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 21, Position 2 = 29
Branch analysis from position: 21
1 jumps found. (Code = 42) Position 1 = 30
Branch analysis from position: 30
2 jumps found. (Code = 43) Position 1 = 38, Position 2 = 46
Branch analysis from position: 38
1 jumps found. (Code = 42) Position 1 = 47
Branch analysis from position: 47
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 46
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 29
2 jumps found. (Code = 43) Position 1 = 38, Position 2 = 46
Branch analysis from position: 38
Branch analysis from position: 46
filename:       /in/61Hbv
function name:  (null)
number of ops:  51
compiled vars:  !0 = $doc, !1 = $body, !2 = $div
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $3      'DOMDocument'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $3
    3     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          
    4     6        INIT_METHOD_CALL                                         !0, 'getElementById'
          7        SEND_VAL_EX                                              'x'
          8        DO_FCALL                                      0  $7      
          9        ASSIGN                                                   !1, $7
    5    10        INIT_METHOD_CALL                                         !0, 'getElementById'
         11        SEND_VAL_EX                                              'y'
         12        DO_FCALL                                      0  $9      
         13        ASSIGN                                                   !2, $9
    6    14        INIT_METHOD_CALL                                         !1, 'removeChild'
         15        SEND_VAR_EX                                              !2
         16        DO_FCALL                                      0          
    7    17        INIT_METHOD_CALL                                         !0, 'getElementById'
         18        SEND_VAL_EX                                              'y'
         19        DO_FCALL                                      0  $12     
         20      > JMPZ                                                     $12, ->29
         21    >   INIT_METHOD_CALL                                         !0, 'saveHTML'
         22        INIT_METHOD_CALL                                         !0, 'getElementById'
         23        SEND_VAL_EX                                              'y'
         24        DO_FCALL                                      0  $13     
         25        SEND_VAR_NO_REF_EX                                       $13
         26        DO_FCALL                                      0  $14     
         27        QM_ASSIGN                                        ~15     $14
         28      > JMP                                                      ->30
         29    >   QM_ASSIGN                                        ~15     'null'
         30    >   CONCAT                                           ~16     '1%3A+', ~15
         31        CONCAT                                           ~17     ~16, '%0A'
         32        ECHO                                                     ~17
    8    33        UNSET_CV                                                 !2
    9    34        INIT_METHOD_CALL                                         !0, 'getElementById'
         35        SEND_VAL_EX                                              'y'
         36        DO_FCALL                                      0  $18     
         37      > JMPZ                                                     $18, ->46
         38    >   INIT_METHOD_CALL                                         !0, 'saveHTML'
         39        INIT_METHOD_CALL                                         !0, 'getElementById'
         40        SEND_VAL_EX                                              'y'
         41        DO_FCALL                                      0  $19     
         42        SEND_VAR_NO_REF_EX                                       $19
         43        DO_FCALL                                      0  $20     
         44        QM_ASSIGN                                        ~21     $20
         45      > JMP                                                      ->47
         46    >   QM_ASSIGN                                        ~21     'null'
         47    >   CONCAT                                           ~22     '2%3A+', ~21
         48        CONCAT                                           ~23     ~22, '%0A'
         49        ECHO                                                     ~23
         50      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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