3v4l.org

run code in 300+ PHP versions simultaneously
<?php $xml = new XMLWriter(); $xml->openMemory(); echo "Does not work" . PHP_EOL; $xml->startElement('parent'); $xml->writeElement('child'); $xml->writeAttribute('parentAttribute', 'a value'); $xml->endElement(); echo $xml->outputMemory() . PHP_EOL; echo "Works" . PHP_EOL; $xml2 = new XMLWriter(); $xml2->openMemory(); $xml2->startElement('parent'); $xml2->writeAttribute('parentAttribute', 'a value'); $xml2->writeElement('child'); $xml2->endElement(); echo $xml2->outputMemory();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GUML9
function name:  (null)
number of ops:  44
compiled vars:  !0 = $xml, !1 = $xml2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'XMLWriter'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    4     3        INIT_METHOD_CALL                                         !0, 'openMemory'
          4        DO_FCALL                                      0          
    6     5        ECHO                                                     'Does+not+work%0A'
    8     6        INIT_METHOD_CALL                                         !0, 'startElement'
          7        SEND_VAL_EX                                              'parent'
          8        DO_FCALL                                      0          
    9     9        INIT_METHOD_CALL                                         !0, 'writeElement'
         10        SEND_VAL_EX                                              'child'
         11        DO_FCALL                                      0          
   10    12        INIT_METHOD_CALL                                         !0, 'writeAttribute'
         13        SEND_VAL_EX                                              'parentAttribute'
         14        SEND_VAL_EX                                              'a+value'
         15        DO_FCALL                                      0          
   11    16        INIT_METHOD_CALL                                         !0, 'endElement'
         17        DO_FCALL                                      0          
   13    18        INIT_METHOD_CALL                                         !0, 'outputMemory'
         19        DO_FCALL                                      0  $10     
         20        CONCAT                                           ~11     $10, '%0A'
         21        ECHO                                                     ~11
   15    22        ECHO                                                     'Works%0A'
   17    23        NEW                                              $12     'XMLWriter'
         24        DO_FCALL                                      0          
         25        ASSIGN                                                   !1, $12
   18    26        INIT_METHOD_CALL                                         !1, 'openMemory'
         27        DO_FCALL                                      0          
   20    28        INIT_METHOD_CALL                                         !1, 'startElement'
         29        SEND_VAL_EX                                              'parent'
         30        DO_FCALL                                      0          
   21    31        INIT_METHOD_CALL                                         !1, 'writeAttribute'
         32        SEND_VAL_EX                                              'parentAttribute'
         33        SEND_VAL_EX                                              'a+value'
         34        DO_FCALL                                      0          
   22    35        INIT_METHOD_CALL                                         !1, 'writeElement'
         36        SEND_VAL_EX                                              'child'
         37        DO_FCALL                                      0          
   23    38        INIT_METHOD_CALL                                         !1, 'endElement'
         39        DO_FCALL                                      0          
   25    40        INIT_METHOD_CALL                                         !1, 'outputMemory'
         41        DO_FCALL                                      0  $20     
         42        ECHO                                                     $20
         43      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
144.07 ms | 1399 KiB | 13 Q