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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->getElementById('y')->tagName : 'null' ) . PHP_EOL; $div->setIdAttribute( 'id', true ); echo '2: ' . ( $doc->getElementById('y') ? $doc->getElementById('y')->tagName : 'null' ) . PHP_EOL;
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 = 39, Position 2 = 45
Branch analysis from position: 39
1 jumps found. (Code = 42) Position 1 = 46
Branch analysis from position: 46
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 45
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 27
2 jumps found. (Code = 43) Position 1 = 39, Position 2 = 45
Branch analysis from position: 39
Branch analysis from position: 45
filename:       /in/UQYTG
function name:  (null)
number of ops:  50
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    >   CONCAT                                               ~16     '1%3A+', ~15
         29        CONCAT                                               ~17     ~16, '%0A'
         30        ECHO                                                         ~17
    9    31        INIT_METHOD_CALL                                             !2, 'setIdAttribute'
         32        SEND_VAL_EX                                                  'id'
         33        SEND_VAL_EX                                                  <true>
         34        DO_FCALL                                          0          
   10    35        INIT_METHOD_CALL                                             !0, 'getElementById'
         36        SEND_VAL_EX                                                  'y'
         37        DO_FCALL                                          0  $19     
         38      > JMPZ                                                         $19, ->45
         39    >   INIT_METHOD_CALL                                             !0, 'getElementById'
         40        SEND_VAL_EX                                                  'y'
         41        DO_FCALL                                          0  $20     
         42        FETCH_OBJ_R                                          ~21     $20, 'tagName'
         43        QM_ASSIGN                                            ~22     ~21
         44      > JMP                                                          ->46
         45    >   QM_ASSIGN                                            ~22     'null'
         46    >   CONCAT                                               ~23     '2%3A+', ~22
         47        CONCAT                                               ~24     ~23, '%0A'
         48        ECHO                                                         ~24
   11    49      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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