Warning: simplexml_load_file(): I/O warning : failed to load external entity "xml/summa.xml" in C:\Apache\localhost\www\Editor Tests\Примеры и образцы\select_help.php on line 17

Warning: foreach() argument must be of type array|object, false given in C:\Apache\localhost\www\Editor Tests\Примеры и образцы\select_help.php on line 28

Warning: Undefined variable $child in C:\Apache\localhost\www\Editor Tests\Примеры и образцы\select_help.php on line 34

Fatal error: Uncaught Error: Call to a member function count() on null in C:\Apache\localhost\www\Editor Tests\Примеры и образцы\select_help.php:34 Stack trace: #0 {main} thrown in C:\Apache\localhost\www\Editor Tests\Примеры и образцы\select_help.php on line 34