original_string: public function getParameter($name)
      {
          $key = strtolower($name);
  
          if (isset($this->parameters[$key])) {
              return $this->parameters[$key];
          }
  
          return null;
      }
code: public function getParameter($name)
      {
          $key = strtolower($name);
  
          if (isset($this->parameters[$key])) {
              return $this->parameters[$key];
          }
  
          return null;
      }
code_tokens: public function getParameter ( $ name ) { $ key = strtolower ( $ name ) ; if ( isset ( $ this -> parameters [ $ key ] ) ) { return $ this -> parameters [ $ key ] ; } return null ; }
docstring: Gets the named parameter metadata.
  
  @param string $name parameter name
  
  @return ParameterSchema metadata of the named parameter. Null if the named parameter does not exist.
docstring_tokens: Gets the named parameter metadata .