3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str='<root> <book id="1"> <title id="aaa">...</title> <author>...</author> </book> <book id="2"> <title>...</title> <author>...</author> </book> <book id="3"> <title>...</title> <author>...</author> </book> </root>'; $dom = new DOMDocument; $dom->loadXML($str); $xpath = new DOMXPath($dom); $book = $xpath->query("//book[@id='2']")->item(0); var_dump($book->nodeValue); //$html = $dom->saveXML($book); //print_r($html); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0S0Z5
function name:  (null)
number of ops:  23
compiled vars:  !0 = $str, !1 = $dom, !2 = $xpath, !3 = $book
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%3Croot%3E%0A++++%3Cbook+id%3D%221%22%3E%0A++++++++%3Ctitle+id%3D%22aaa%22%3E...%3C%2Ftitle%3E%0A++++++++%3Cauthor%3E...%3C%2Fauthor%3E%0A++++%3C%2Fbook%3E%0A++++%3Cbook+id%3D%222%22%3E%0A++++++++%3Ctitle%3E...%3C%2Ftitle%3E%0A++++++++%3Cauthor%3E...%3C%2Fauthor%3E%0A++++%3C%2Fbook%3E%0A++++%3Cbook+id%3D%223%22%3E%0A++++++++%3Ctitle%3E...%3C%2Ftitle%3E%0A++++++++%3Cauthor%3E...%3C%2Fauthor%3E%0A++++%3C%2Fbook%3E%0A%3C%2Froot%3E'
   17     1        NEW                                              $5      'DOMDocument'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !1, $5
   18     4        INIT_METHOD_CALL                                         !1, 'loadXML'
          5        SEND_VAR_EX                                              !0
          6        DO_FCALL                                      0          
   19     7        NEW                                              $9      'DOMXPath'
          8        SEND_VAR_EX                                              !1
          9        DO_FCALL                                      0          
         10        ASSIGN                                                   !2, $9
   20    11        INIT_METHOD_CALL                                         !2, 'query'
         12        SEND_VAL_EX                                              '%2F%2Fbook%5B%40id%3D%272%27%5D'
         13        DO_FCALL                                      0  $12     
         14        INIT_METHOD_CALL                                         $12, 'item'
         15        SEND_VAL_EX                                              0
         16        DO_FCALL                                      0  $13     
         17        ASSIGN                                                   !3, $13
   21    18        INIT_FCALL                                               'var_dump'
         19        FETCH_OBJ_R                                      ~15     !3, 'nodeValue'
         20        SEND_VAL                                                 ~15
         21        DO_ICALL                                                 
   29    22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
158.09 ms | 1395 KiB | 15 Q