Test on moodle 2.8.5+

Tried to use web services protocol SOAP.
Configure moodle web service as described in the documentation (https://docs.moodle.org/28/en/Using_web_services).
Created a web service client, as shown here: https://docs.moodle.org/dev/Creating_a_web_service_client

WSDL was not created automatically, SoapClient generated an error:
Fatal error: SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://localhost/moodle/webservice/soap/server.php?wsdl=1&wstoken=af881bc315aae584f8f20f106b5d4075' : failed to load external entity "http://localhost/moodle/webservice/soap/server.php?wsdl=1&wstoken=af881bc315aae584f8f20f106b5d4075" in D:\server\home\localhost\www\index.php on line 73

After this I change value NO_DEBUG_DISPLAY to false (/webservice/soap/server.php on line 29). Script gave me an error:
Fatal error: Cannot redeclare class webservices_struct_class_000027 in D:\server\home\moodle.pgtu\www\webservice\soap\locallib.php(300) : eval()'d code on line 5

This error occurs due to the use of recursion in the file /webservice/soap/locallib.php on line 285 and calls method get_phpdoc_type($fieldsdesc). Incremented previously webservices_struct_class_000000 class name is overwritten with a new value as a result of calling this method, and when you try to create a new class with the same name, the script gives an error.

To get rid of this error, you need to swap the check for the generated class and calling get_phpdoc_type

New code of method:
/**

• Generate 'struct' type name
• This type name is the name of a class generated on the fly.
  *
• @param external_single_structure $structdesc
• @return string
  */
  protected function generate_simple_struct_class(external_single_structure $structdesc) {
  global $USER;

$fields = array();
foreach ($structdesc->keys as $name => $fieldsdesc)

{ $type = $this->get_phpdoc_type($fieldsdesc); $fields[] = ' /** @var '.$type." */\n" . ' public $'.$name.';'; }

// let's use unique class name, there might be problem in unit tests
$classname = 'webservices_struct_class_000000';
while(class_exists($classname))

{ $classname++; }

$code = '
/**

• Virtual struct class for web services for user id '.$USER->id.' in context '.$this->restricted_context->id.'.
  */
  class '.$classname.' { '.implode("\n", $fields).' }

  ';
  eval($code);
  return $classname;
  }