original_string: public function connect() {
      // Check that the MySQLi extension is installed.
      if (!is_callable('mysqli_connect')) {
        throw new Exceptions\UnableToConnectException(
            'MySQLi PHP extension is not available. It probably has not been '.
            'installed. Please install and configure it in order to use MySQL.'
        );
      }
      $host = $this->config['MySQL']['host'];
      $user = $this->config['MySQL']['user'];
      $password = $this->config['MySQL']['password'];
      $database = $this->config['MySQL']['database'];
      $port = $this->config['MySQL']['port'];
  
      // If we think we're connected, try pinging the server.
      if ($this->connected && !mysqli_ping($this->link)) {
        $this->connected = false;
      }
  
      // Connecting, selecting database
      if (!$this->connected) {
        $link = is_callable($this->config['MySQL']['link'])
          ? $this->config['MySQL']['link']()
          : null;
  
        if ($this->link = $link ??
            mysqli_connect(
                $host,
                $user,
                $password,
                $database,
                $port
            )) {
          $this->connected = true;
        } else {
          $this->connected = false;
          if ($host === 'localhost'
              && $user === 'nymph'
              && $password === 'password'
              && $database === 'nymph'
              && $link === null) {
            throw new Exceptions\NotConfiguredException();
          } else {
            throw new Exceptions\UnableToConnectException(
                'Could not connect: '.
                    mysqli_error($this->link)
            );
          }
        }
      }
      return $this->connected;
    }
code: public function connect() {
      // Check that the MySQLi extension is installed.
      if (!is_callable('mysqli_connect')) {
        throw new Exceptions\UnableToConnectException(
            'MySQLi PHP extension is not available. It probably has not been '.
            'installed. Please install and configure it in order to use MySQL.'
        );
      }
      $host = $this->config['MySQL']['host'];
      $user = $this->config['MySQL']['user'];
      $password = $this->config['MySQL']['password'];
      $database = $this->config['MySQL']['database'];
      $port = $this->config['MySQL']['port'];
  
      // If we think we're connected, try pinging the server.
      if ($this->connected && !mysqli_ping($this->link)) {
        $this->connected = false;
      }
  
      // Connecting, selecting database
      if (!$this->connected) {
        $link = is_callable($this->config['MySQL']['link'])
          ? $this->config['MySQL']['link']()
          : null;
  
        if ($this->link = $link ??
            mysqli_connect(
                $host,
                $user,
                $password,
                $database,
                $port
            )) {
          $this->connected = true;
        } else {
          $this->connected = false;
          if ($host === 'localhost'
              && $user === 'nymph'
              && $password === 'password'
              && $database === 'nymph'
              && $link === null) {
            throw new Exceptions\NotConfiguredException();
          } else {
            throw new Exceptions\UnableToConnectException(
                'Could not connect: '.
                    mysqli_error($this->link)
            );
          }
        }
      }
      return $this->connected;
    }
code_tokens: public function connect ( ) { // Check that the MySQLi extension is installed. if ( ! is_callable ( 'mysqli_connect' ) ) { throw new Exceptions \ UnableToConnectException ( 'MySQLi PHP extension is not available. It probably has not been ' . 'installed. Please install and configure it in order to use MySQL.' ) ; } $ host = $ this -> config [ 'MySQL' ] [ 'host' ] ; $ user = $ this -> config [ 'MySQL' ] [ 'user' ] ; $ password = $ this -> config [ 'MySQL' ] [ 'password' ] ; $ database = $ this -> config [ 'MySQL' ] [ 'database' ] ; $ port = $ this -> config [ 'MySQL' ] [ 'port' ] ; // If we think we're connected, try pinging the server. if ( $ this -> connected && ! mysqli_ping ( $ this -> link ) ) { $ this -> connected = false ; } // Connecting, selecting database if ( ! $ this -> connected ) { $ link = is_callable ( $ this -> config [ 'MySQL' ] [ 'link' ] ) ? $ this -> config [ 'MySQL' ] [ 'link' ] ( ) : null ; if ( $ this -> link = $ link ?? mysqli_connect ( $ host , $ user , $ password , $ database , $ port ) ) { $ this -> connected = true ; } else { $ this -> connected = false ; if ( $ host === 'localhost' && $ user === 'nymph' && $ password === 'password' && $ database === 'nymph' && $ link === null ) { throw new Exceptions \ NotConfiguredException ( ) ; } else { throw new Exceptions \ UnableToConnectException ( 'Could not connect: ' . mysqli_error ( $ this -> link ) ) ; } } } return $ this -> connected ; }
docstring: Connect to the MySQL database.
  
  @return bool Whether this instance is connected to a MySQL database after
  the method has run.
docstring_tokens: Connect to the MySQL database .