original_string: public function checkValid()
      {
          // error code/message already set
          if ($this->error_code && $this->error_message) {
              return false;
          }
  
          // missing jsonrpc or method
          if (!$this->json_rpc || !$this->method) {
              $this->error_code = self::ERROR_INVALID_REQUEST;
              $this->error_message = "Invalid Request.";
              return false;
          }
  
          // reserved method prefix
          if (substr($this->method,0,4) == 'rpc.') {
              $this->error_code = self::ERROR_RESERVED_PREFIX;
              $this->error_message = "Illegal method name; Method cannot start with 'rpc.'";
              return false;
          }
  
          // illegal method name
          if (!preg_match(self::VALID_FUNCTION_NAME, $this->method)) {
              $this->error_code = self::ERROR_INVALID_REQUEST;
              $this->error_message = "Invalid Request.";
              return false;
          }
  
          // mismatched json-rpc version
          if ($this->json_rpc != "2.0") {
              $this->error_code = self::ERROR_MISMATCHED_VERSION;
              $this->error_message = "Client/Server JSON-RPC version mismatch; Expected '2.0'";
              return false;
          }
  
          // valid request
          return true;
      }
code: public function checkValid()
      {
          // error code/message already set
          if ($this->error_code && $this->error_message) {
              return false;
          }
  
          // missing jsonrpc or method
          if (!$this->json_rpc || !$this->method) {
              $this->error_code = self::ERROR_INVALID_REQUEST;
              $this->error_message = "Invalid Request.";
              return false;
          }
  
          // reserved method prefix
          if (substr($this->method,0,4) == 'rpc.') {
              $this->error_code = self::ERROR_RESERVED_PREFIX;
              $this->error_message = "Illegal method name; Method cannot start with 'rpc.'";
              return false;
          }
  
          // illegal method name
          if (!preg_match(self::VALID_FUNCTION_NAME, $this->method)) {
              $this->error_code = self::ERROR_INVALID_REQUEST;
              $this->error_message = "Invalid Request.";
              return false;
          }
  
          // mismatched json-rpc version
          if ($this->json_rpc != "2.0") {
              $this->error_code = self::ERROR_MISMATCHED_VERSION;
              $this->error_message = "Client/Server JSON-RPC version mismatch; Expected '2.0'";
              return false;
          }
  
          // valid request
          return true;
      }
code_tokens: public function checkValid ( ) { // error code/message already set if ( $ this -> error_code && $ this -> error_message ) { return false ; } // missing jsonrpc or method if ( ! $ this -> json_rpc || ! $ this -> method ) { $ this -> error_code = self :: ERROR_INVALID_REQUEST ; $ this -> error_message = "Invalid Request." ; return false ; } // reserved method prefix if ( substr ( $ this -> method , 0 , 4 ) == 'rpc.' ) { $ this -> error_code = self :: ERROR_RESERVED_PREFIX ; $ this -> error_message = "Illegal method name; Method cannot start with 'rpc.'" ; return false ; } // illegal method name if ( ! preg_match ( self :: VALID_FUNCTION_NAME , $ this -> method ) ) { $ this -> error_code = self :: ERROR_INVALID_REQUEST ; $ this -> error_message = "Invalid Request." ; return false ; } // mismatched json-rpc version if ( $ this -> json_rpc != "2.0" ) { $ this -> error_code = self :: ERROR_MISMATCHED_VERSION ; $ this -> error_message = "Client/Server JSON-RPC version mismatch; Expected '2.0'" ; return false ; } // valid request return true ; }
docstring: returns true if request is valid or returns false assigns error
docstring_tokens: returns true if request is valid or returns false assigns error