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<?php function getValue($html, $tag, $attr) { $dom = new DOMDocument; $dom->loadHTML($html); $xpath = new DOMXPath($dom); $result = []; foreach ($xpath->query("//{$tag}[@{$attr}]") as $node) { $result[] = $node->getAttribute($attr); } return implode(',', $result); } $html = '<a data-id="777777"></a><a data-id="888888"></a><a data-id="99999"></a>'; $tag = 'a'; $attr = 'data-id'; echo getValue($html, $tag, $attr); echo "\n---\n"; $html = '<a data-A="AAAAAA"></a><a data-A="BBBBBB"></a><a data-A="CCCCCC"></a>'; $tag = 'a'; $attr = 'data-a'; echo getValue($html, $tag, $attr);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DZQj4
function name:  (null)
number of ops:  20
compiled vars:  !0 = $html, !1 = $tag, !2 = $attr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   ASSIGN                                                   !0, '%3Ca+data-id%3D%22777777%22%3E%3C%2Fa%3E%3Ca+data-id%3D%22888888%22%3E%3C%2Fa%3E%3Ca+data-id%3D%2299999%22%3E%3C%2Fa%3E'
   15     1        ASSIGN                                                   !1, 'a'
   16     2        ASSIGN                                                   !2, 'data-id'
   17     3        INIT_FCALL                                               'getvalue'
          4        SEND_VAR                                                 !0
          5        SEND_VAR                                                 !1
          6        SEND_VAR                                                 !2
          7        DO_FCALL                                      0  $6      
          8        ECHO                                                     $6
   19     9        ECHO                                                     '%0A---%0A'
   21    10        ASSIGN                                                   !0, '%3Ca+data-A%3D%22AAAAAA%22%3E%3C%2Fa%3E%3Ca+data-A%3D%22BBBBBB%22%3E%3C%2Fa%3E%3Ca+data-A%3D%22CCCCCC%22%3E%3C%2Fa%3E'
   22    11        ASSIGN                                                   !1, 'a'
   23    12        ASSIGN                                                   !2, 'data-a'
   24    13        INIT_FCALL                                               'getvalue'
         14        SEND_VAR                                                 !0
         15        SEND_VAR                                                 !1
         16        SEND_VAR                                                 !2
         17        DO_FCALL                                      0  $10     
         18        ECHO                                                     $10
         19      > RETURN                                                   1

Function getvalue:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 23, Position 2 = 30
Branch analysis from position: 23
2 jumps found. (Code = 78) Position 1 = 24, Position 2 = 30
Branch analysis from position: 24
1 jumps found. (Code = 42) Position 1 = 23
Branch analysis from position: 23
Branch analysis from position: 30
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 30
filename:       /in/DZQj4
function name:  getValue
number of ops:  37
compiled vars:  !0 = $html, !1 = $tag, !2 = $attr, !3 = $dom, !4 = $xpath, !5 = $result, !6 = $node
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV                                             !2      
    4     3        NEW                                              $7      'DOMDocument'
          4        DO_FCALL                                      0          
          5        ASSIGN                                                   !3, $7
    5     6        INIT_METHOD_CALL                                         !3, 'loadHTML'
          7        SEND_VAR_EX                                              !0
          8        DO_FCALL                                      0          
    6     9        NEW                                              $11     'DOMXPath'
         10        SEND_VAR_EX                                              !3
         11        DO_FCALL                                      0          
         12        ASSIGN                                                   !4, $11
    7    13        ASSIGN                                                   !5, <array>
    8    14        INIT_METHOD_CALL                                         !4, 'query'
         15        ROPE_INIT                                     5  ~16     '%2F%2F'
         16        ROPE_ADD                                      1  ~16     ~16, !1
         17        ROPE_ADD                                      2  ~16     ~16, '%5B%40'
         18        ROPE_ADD                                      3  ~16     ~16, !2
         19        ROPE_END                                      4  ~15     ~16, '%5D'
         20        SEND_VAL_EX                                              ~15
         21        DO_FCALL                                      0  $19     
         22      > FE_RESET_R                                       $20     $19, ->30
         23    > > FE_FETCH_R                                               $20, !6, ->30
    9    24    >   INIT_METHOD_CALL                                         !6, 'getAttribute'
         25        SEND_VAR_EX                                              !2
         26        DO_FCALL                                      0  $22     
         27        ASSIGN_DIM                                               !5
         28        OP_DATA                                                  $22
    8    29      > JMP                                                      ->23
         30    >   FE_FREE                                                  $20
   11    31        INIT_FCALL                                               'implode'
         32        SEND_VAL                                                 '%2C'
         33        SEND_VAR                                                 !5
         34        DO_ICALL                                         $23     
         35      > RETURN                                                   $23
   12    36*     > RETURN                                                   null

End of function getvalue

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