3v4l.org

run code in 500+ PHP versions simultaneously
<?php echo "PHP " . PHP_VERSION . PHP_EOL; echo "libxml " . LIBXML_DOTTED_VERSION . PHP_EOL . PHP_EOL; $doc = Dom\XMLDocument::createFromString('<root xmlns="urn:a" attr="val"/>'); $doc->documentElement->setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:ns1", "urn:a"); echo "saveXML: " . trim($doc->saveXML()) . PHP_EOL; echo "C14N: " . $doc->C14N() . PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dDYik
function name:  (null)
number of ops:  26
compiled vars:  !0 = $doc
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ECHO                                                     'PHP+8.3.0%0A'
    3     1        ECHO                                                     'libxml+2.9.4%0A%0A'
    5     2        INIT_STATIC_METHOD_CALL                                  'Dom%5CXMLDocument', 'createFromString'
          3        SEND_VAL_EX                                              '%3Croot+xmlns%3D%22urn%3Aa%22+attr%3D%22val%22%2F%3E'
          4        DO_FCALL                                      0  $1      
          5        ASSIGN                                                   !0, $1
    6     6        FETCH_OBJ_R                                      ~3      !0, 'documentElement'
          7        INIT_METHOD_CALL                                         ~3, 'setAttributeNS'
          8        SEND_VAL_EX                                              'http%3A%2F%2Fwww.w3.org%2F2000%2Fxmlns%2F'
          9        SEND_VAL_EX                                              'xmlns%3Ans1'
         10        SEND_VAL_EX                                              'urn%3Aa'
         11        DO_FCALL                                      0          
    8    12        INIT_FCALL                                               'trim'
         13        INIT_METHOD_CALL                                         !0, 'saveXML'
         14        DO_FCALL                                      0  $5      
         15        SEND_VAR                                                 $5
         16        DO_ICALL                                         $6      
         17        CONCAT                                           ~7      'saveXML%3A+', $6
         18        CONCAT                                           ~8      ~7, '%0A'
         19        ECHO                                                     ~8
    9    20        INIT_METHOD_CALL                                         !0, 'C14N'
         21        DO_FCALL                                      0  $9      
         22        CONCAT                                           ~10     'C14N%3A++++', $9
         23        CONCAT                                           ~11     ~10, '%0A'
         24        ECHO                                                     ~11
   10    25      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
155.32 ms | 1092 KiB | 14 Q