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<?php /** * The only reliable way of determining if a child exists * in SimpleXMLElement is to use count(). All other methods * do not work reliably in global or local NS. * * NOTE: Error suppresion on @count() is used to suppress * "PHP Warning: count(): Node no longer exists" */ if(!class_exists('SimpleXMLElement')) die("Bonkers"); $xml = new SimpleXMLElement(' <xml xmlns:abstract="urn:my.org:abstract"> <abstract:node>foo</abstract:node> <bar>123</bar> </xml> '); var_dump(gettype($xml->node)); var_dump(isset($xml->node)); var_dump(empty($xml->node)); var_dump(is_null($xml->node)); var_dump(@count($xml->node)); var_dump(@count($xml->node->children())); echo "----------------------\n"; var_dump(gettype($xml->bar)); var_dump(isset($xml->bar)); var_dump(empty($xml->bar)); var_dump(is_null($xml->bar)); var_dump(@count($xml->bar)); var_dump(@count($xml->bar->children())); echo "----------------------\n"; var_dump(gettype($xml->children('abstract',true)->node)); var_dump(isset($xml->children('abstract',true)->node)); var_dump(empty($xml->children('abstract',true)->node)); var_dump(is_null($xml->children('abstract',true)->node)); var_dump(@count($xml->children('abstract',true)->node)); var_dump(@count($xml->children('abstract',true)->node->children())); echo "----------------------\n"; var_dump(gettype($xml->children('abstract',true)->bar)); var_dump(isset($xml->children('abstract',true)->bar)); var_dump(empty($xml->children('abstract',true)->bar)); var_dump(is_null($xml->children('abstract',true)->bar)); var_dump(@count($xml->children('abstract',true)->bar)); var_dump(@count($xml->children('abstract',true)->bar->children()));
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 6
Branch analysis from position: 5
1 jumps found. (Code = 79) Position 1 = -2
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/j5lTK
function name:  (null)
number of ops:  198
compiled vars:  !0 = $xml
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   INIT_FCALL                                               'class_exists'
          1        SEND_VAL                                                 'SimpleXMLElement'
          2        DO_ICALL                                         $1      
          3        BOOL_NOT                                         ~2      $1
          4      > JMPZ                                                     ~2, ->6
          5    > > EXIT                                                     'Bonkers'
   11     6    >   NEW                                              $3      'SimpleXMLElement'
          7        SEND_VAL_EX                                              '%0A++++%3Cxml+xmlns%3Aabstract%3D%22urn%3Amy.org%3Aabstract%22%3E%0A++++++++%3Cabstract%3Anode%3Efoo%3C%2Fabstract%3Anode%3E%0A++++++++%3Cbar%3E123%3C%2Fbar%3E%0A++++%3C%2Fxml%3E%0A'
          8        DO_FCALL                                      0          
          9        ASSIGN                                                   !0, $3
   17    10        INIT_FCALL                                               'var_dump'
         11        FETCH_OBJ_R                                      ~6      !0, 'node'
         12        GET_TYPE                                         ~7      ~6
         13        SEND_VAL                                                 ~7
         14        DO_ICALL                                                 
   18    15        INIT_FCALL                                               'var_dump'
         16        ISSET_ISEMPTY_PROP_OBJ                           ~9      !0, 'node'
         17        SEND_VAL                                                 ~9
         18        DO_ICALL                                                 
   19    19        INIT_FCALL                                               'var_dump'
         20        ISSET_ISEMPTY_PROP_OBJ                           ~11     !0, 'node'
         21        SEND_VAL                                                 ~11
         22        DO_ICALL                                                 
   20    23        INIT_FCALL                                               'var_dump'
         24        FETCH_OBJ_R                                      ~13     !0, 'node'
         25        TYPE_CHECK                                    2  ~14     ~13
         26        SEND_VAL                                                 ~14
         27        DO_ICALL                                                 
   21    28        INIT_FCALL                                               'var_dump'
         29        BEGIN_SILENCE                                    ~16     
         30        FETCH_OBJ_R                                      ~17     !0, 'node'
         31        COUNT                                            ~18     ~17
         32        END_SILENCE                                              ~16
         33        SEND_VAL                                                 ~18
         34        DO_ICALL                                                 
   22    35        INIT_FCALL                                               'var_dump'
         36        BEGIN_SILENCE                                    ~20     
         37        FETCH_OBJ_R                                      ~21     !0, 'node'
         38        INIT_METHOD_CALL                                         ~21, 'children'
         39        DO_FCALL                                      0  $22     
         40        COUNT                                            ~23     $22
         41        END_SILENCE                                              ~20
         42        SEND_VAL                                                 ~23
         43        DO_ICALL                                                 
   23    44        ECHO                                                     '----------------------%0A'
   24    45        INIT_FCALL                                               'var_dump'
         46        FETCH_OBJ_R                                      ~25     !0, 'bar'
         47        GET_TYPE                                         ~26     ~25
         48        SEND_VAL                                                 ~26
         49        DO_ICALL                                                 
   25    50        INIT_FCALL                                               'var_dump'
         51        ISSET_ISEMPTY_PROP_OBJ                           ~28     !0, 'bar'
         52        SEND_VAL                                                 ~28
         53        DO_ICALL                                                 
   26    54        INIT_FCALL                                               'var_dump'
         55        ISSET_ISEMPTY_PROP_OBJ                           ~30     !0, 'bar'
         56        SEND_VAL                                                 ~30
         57        DO_ICALL                                                 
   27    58        INIT_FCALL                                               'var_dump'
         59        FETCH_OBJ_R                                      ~32     !0, 'bar'
         60        TYPE_CHECK                                    2  ~33     ~32
         61        SEND_VAL                                                 ~33
         62        DO_ICALL                                                 
   28    63        INIT_FCALL                                               'var_dump'
         64        BEGIN_SILENCE                                    ~35     
         65        FETCH_OBJ_R                                      ~36     !0, 'bar'
         66        COUNT                                            ~37     ~36
         67        END_SILENCE                                              ~35
         68        SEND_VAL                                                 ~37
         69        DO_ICALL                                                 
   29    70        INIT_FCALL                                               'var_dump'
         71        BEGIN_SILENCE                                    ~39     
         72        FETCH_OBJ_R                                      ~40     !0, 'bar'
         73        INIT_METHOD_CALL                                         ~40, 'children'
         74        DO_FCALL                                      0  $41     
         75        COUNT                                            ~42     $41
         76        END_SILENCE                                              ~39
         77        SEND_VAL                                                 ~42
         78        DO_ICALL                                                 
   30    79        ECHO                                                     '----------------------%0A'
   31    80        INIT_FCALL                                               'var_dump'
         81        INIT_METHOD_CALL                                         !0, 'children'
         82        SEND_VAL_EX                                              'abstract'
         83        SEND_VAL_EX                                              <true>
         84        DO_FCALL                                      0  $44     
         85        FETCH_OBJ_R                                      ~45     $44, 'node'
         86        GET_TYPE                                         ~46     ~45
         87        SEND_VAL                                                 ~46
         88        DO_ICALL                                                 
   32    89        INIT_FCALL                                               'var_dump'
         90        INIT_METHOD_CALL                                         !0, 'children'
         91        SEND_VAL_EX                                              'abstract'
         92        SEND_VAL_EX                                              <true>
         93        DO_FCALL                                      0  $48     
         94        ISSET_ISEMPTY_PROP_OBJ                           ~49     $48, 'node'
         95        SEND_VAL                                                 ~49
         96        DO_ICALL                                                 
   33    97        INIT_FCALL                                               'var_dump'
         98        INIT_METHOD_CALL                                         !0, 'children'
         99        SEND_VAL_EX                                              'abstract'
        100        SEND_VAL_EX                                              <true>
        101        DO_FCALL                                      0  $51     
        102        ISSET_ISEMPTY_PROP_OBJ                           ~52     $51, 'node'
        103        SEND_VAL                                                 ~52
        104        DO_ICALL                                                 
   34   105        INIT_FCALL                                               'var_dump'
        106        INIT_METHOD_CALL                                         !0, 'children'
        107        SEND_VAL_EX                                              'abstract'
        108        SEND_VAL_EX                                              <true>
        109        DO_FCALL                                      0  $54     
        110        FETCH_OBJ_R                                      ~55     $54, 'node'
        111        TYPE_CHECK                                    2  ~56     ~55
        112        SEND_VAL                                                 ~56
        113        DO_ICALL                                                 
   35   114        INIT_FCALL                                               'var_dump'
        115        BEGIN_SILENCE                                    ~58     
        116        INIT_METHOD_CALL                                         !0, 'children'
        117        SEND_VAL_EX                                              'abstract'
        118        SEND_VAL_EX                                              <true>
        119        DO_FCALL                                      0  $59     
        120        FETCH_OBJ_R                                      ~60     $59, 'node'
        121        COUNT                                            ~61     ~60
        122        END_SILENCE                                              ~58
        123        SEND_VAL                                                 ~61
        124        DO_ICALL                                                 
   36   125        INIT_FCALL                                               'var_dump'
        126        BEGIN_SILENCE                                    ~63     
        127        INIT_METHOD_CALL                                         !0, 'children'
        128        SEND_VAL_EX                                              'abstract'
        129        SEND_VAL_EX                                              <true>
        130        DO_FCALL                                      0  $64     
        131        FETCH_OBJ_R                                      ~65     $64, 'node'
        132        INIT_METHOD_CALL                                         ~65, 'children'
        133        DO_FCALL                                      0  $66     
        134        COUNT                                            ~67     $66
        135        END_SILENCE                                              ~63
        136        SEND_VAL                                                 ~67
        137        DO_ICALL                                                 
   37   138        ECHO                                                     '----------------------%0A'
   38   139        INIT_FCALL                                               'var_dump'
        140        INIT_METHOD_CALL                                         !0, 'children'
        141        SEND_VAL_EX                                              'abstract'
        142        SEND_VAL_EX                                              <true>
        143        DO_FCALL                                      0  $69     
        144        FETCH_OBJ_R                                      ~70     $69, 'bar'
        145        GET_TYPE                                         ~71     ~70
        146        SEND_VAL                                                 ~71
        147        DO_ICALL                                                 
   39   148        INIT_FCALL                                               'var_dump'
        149        INIT_METHOD_CALL                                         !0, 'children'
        150        SEND_VAL_EX                                              'abstract'
        151        SEND_VAL_EX                                              <true>
        152        DO_FCALL                                      0  $73     
        153        ISSET_ISEMPTY_PROP_OBJ                           ~74     $73, 'bar'
        154        SEND_VAL                                                 ~74
        155        DO_ICALL                                                 
   40   156        INIT_FCALL                                               'var_dump'
        157        INIT_METHOD_CALL                                         !0, 'children'
        158        SEND_VAL_EX                                              'abstract'
        159        SEND_VAL_EX                                              <true>
        160        DO_FCALL                                      0  $76     
        161        ISSET_ISEMPTY_PROP_OBJ                           ~77     $76, 'bar'
        162        SEND_VAL                                                 ~77
        163        DO_ICALL                                                 
   41   164        INIT_FCALL                                               'var_dump'
        165        INIT_METHOD_CALL                                         !0, 'children'
        166        SEND_VAL_EX                                              'abstract'
        167        SEND_VAL_EX                                              <true>
        168        DO_FCALL                                      0  $79     
        169        FETCH_OBJ_R                                      ~80     $79, 'bar'
        170        TYPE_CHECK                                    2  ~81     ~80
        171        SEND_VAL                                                 ~81
        172        DO_ICALL                                                 
   42   173        INIT_FCALL                                               'var_dump'
        174        BEGIN_SILENCE                                    ~83     
        175        INIT_METHOD_CALL                                         !0, 'children'
        176        SEND_VAL_EX                                              'abstract'
        177        SEND_VAL_EX                                              <true>
        178        DO_FCALL                                      0  $84     
        179        FETCH_OBJ_R                                      ~85     $84, 'bar'
        180        COUNT                                            ~86     ~85
        181        END_SILENCE                                              ~83
        182        SEND_VAL                                                 ~86
        183        DO_ICALL                                                 
   43   184        INIT_FCALL                                               'var_dump'
        185        BEGIN_SILENCE                                    ~88     
        186        INIT_METHOD_CALL                                         !0, 'children'
        187        SEND_VAL_EX                                              'abstract'
        188        SEND_VAL_EX                                              <true>
        189        DO_FCALL                                      0  $89     
        190        FETCH_OBJ_R                                      ~90     $89, 'bar'
        191        INIT_METHOD_CALL                                         ~90, 'children'
        192        DO_FCALL                                      0  $91     
        193        COUNT                                            ~92     $91
        194        END_SILENCE                                              ~88
        195        SEND_VAL                                                 ~92
        196        DO_ICALL                                                 
        197      > RETURN                                                   1

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