3v4l.org

run code in 300+ PHP versions simultaneously
<?php $xml = <<<XML <html> <head><title></title></head> <body> <CONTENT/> </body> </html> XML; $dom = new DOMDocument(); $dom->loadXML($xml); $c = new DOMDocument(); $c->loadXML("<h1>heading</h1>"); $c = $dom->importNode($c->documentElement); $dom->getElementsByTagName("CONTENT")->item(0)->parentNode->insertBefore($c); echo $dom->saveHTML();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rorKR
function name:  (null)
number of ops:  33
compiled vars:  !0 = $xml, !1 = $dom, !2 = $c
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%3Chtml%3E%0A%3Chead%3E%3Ctitle%3E%3C%2Ftitle%3E%3C%2Fhead%3E%0A%3Cbody%3E%0A%3CCONTENT%2F%3E%0A%3C%2Fbody%3E%0A%3C%2Fhtml%3E'
   10     1        NEW                                              $4      'DOMDocument'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !1, $4
   11     4        INIT_METHOD_CALL                                         !1, 'loadXML'
          5        SEND_VAR_EX                                              !0
          6        DO_FCALL                                      0          
   12     7        NEW                                              $8      'DOMDocument'
          8        DO_FCALL                                      0          
          9        ASSIGN                                                   !2, $8
   13    10        INIT_METHOD_CALL                                         !2, 'loadXML'
         11        SEND_VAL_EX                                              '%3Ch1%3Eheading%3C%2Fh1%3E'
         12        DO_FCALL                                      0          
   14    13        INIT_METHOD_CALL                                         !1, 'importNode'
         14        CHECK_FUNC_ARG                                           
         15        FETCH_OBJ_FUNC_ARG                               $12     !2, 'documentElement'
         16        SEND_FUNC_ARG                                            $12
         17        DO_FCALL                                      0  $13     
         18        ASSIGN                                                   !2, $13
   15    19        INIT_METHOD_CALL                                         !1, 'getElementsByTagName'
         20        SEND_VAL_EX                                              'CONTENT'
         21        DO_FCALL                                      0  $15     
         22        INIT_METHOD_CALL                                         $15, 'item'
         23        SEND_VAL_EX                                              0
         24        DO_FCALL                                      0  $16     
         25        FETCH_OBJ_R                                      ~17     $16, 'parentNode'
         26        INIT_METHOD_CALL                                         ~17, 'insertBefore'
         27        SEND_VAR_EX                                              !2
         28        DO_FCALL                                      0          
   16    29        INIT_METHOD_CALL                                         !1, 'saveHTML'
         30        DO_FCALL                                      0  $19     
         31        ECHO                                                     $19
         32      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
159.18 ms | 1395 KiB | 13 Q