PHP Db::connection方法代码示例

 protected static function getConnection()
 {
     if (!self::$connection) {
         self::$connection = new PDO('mysql:host=' . DB_HOST . ';dbname=' . DB_NAME, DB_USER, DB_PASSWORD, [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]);
     }
     return self::$connection;
 }

 public static function getInstance()
 {
     if (!self::$connection) {
         self::$connection = new self();
     }
     return self::$connection;
 }

 public function getTermInfo($condition)
 {
     $db = Db::connection($this->connection)->table($this->table);
     $db = $this->formatCondition($db, $condition);
     $res = $db->first();
     return $res;
 }

 public static function connect($host, $database, $user, $password)
 {
     if (!isset(self::$connection)) {
         $dsn = "mysql:host={$host};dbname={$database}";
         self::$connection = new PDO($dsn, $user, $password, self::$options);
     }
 }

 public static function connect($config)
 {
     self::$connection = @new mysqli($config['hostname'], $config['username'], $config['password'], $config['database']);
     if (self::$connection->connect_errno) {
         throw new Exception(self::$connection->connect_error);
     }
     self::execute("SET NAMES 'utf8'");
 }

 public static function connect($host, $user, $password, $database)
 {
     if (!isset(self::$connection)) {
         self::$connection = @new PDO("mysql:host={$host};dbname={$database}", $user, $password, self::$settings);
         return true;
     }
     return false;
 }

 public function connect()
 {
     if (!isset(self::$connection)) {
         self::$connection = new mysqli('localhost', "root", "", "gotit");
     }
     if (self::$connection === false) {
         return false;
     }
     return self::$connection;
 }

 /**
  * Connect to the database
  *
  * @return bool false on failure / mysqli MySQLi object instance on success
  */
 public function connect()
 {
     if (!isset(self::$connection)) {
         $config = parse_ini_file('../config/config.ini');
         self::$connection = new mysqli($config['host'], $config['username'], $config['password'], $config['dbname']);
     }
     if (self::$connection === false) {
         return false;
     }
     return self::$connection;
 }

 public function connect()
 {
     if (!isset(self::$connection)) {
         $login = $this->readLogin("../../config.json");
         self::$connection = new mysqli($login["hostname"], $login["username"], $login["password"], $login["db"]);
     }
     if (self::$connection->connect_errno) {
         echo "Failed to connect to MySQL: " . self::$connection->connect_error;
         return false;
     }
     return self::$connection;
 }

 /**
  * Connect to database.
  */
 public static function connect()
 {
     self::$connection = mysql_connect(DB_SERVER, DB_USERNAME, DB_PASSWORD);
     if (!self::$connection) {
         trigger_error('Can\'t connect to database.');
         return false;
     } else {
         mysql_select_db(DB_DATABASE);
         mysql_query("SET CHARACTER SET " . MYSQL_CHARSET);
         return true;
     }
 }

 /**
  * Connect to the database
  * 
  * @return bool false on failure / mysqli MySQLi object instance on success
  */
 public function connect()
 {
     // Try and connect to the database
     if (!isset(self::$connection)) {
         self::$connection = new mysqli(global_mysql_server, global_mysql_user, global_mysql_password, global_mysql_database);
     }
     // If connection was not successful, handle the error
     if (self::$connection === false) {
         // Handle error - notify administrator, log to a file, show an error screen, etc.
         return false;
     }
     return self::$connection;
 }

 public function connect()
 {
     if (!isset(self::$connection)) {
         self::$connection = new mysqli(\DbConfig::HOST, \DbConfig::USER_NAME, \DbConfig::USER_PASSWORD, \DbConfig::DB_NAME);
     }
     //If connection was not success, handle the error
     if (!self::$connection) {
         // Handle error - notify administrator, log to a file, show an error screen, etc.
         return false;
     }
     self::$connection->autocommit(false);
     return self::$connection;
 }

 /**
  * Connect to the database
  * 
  * @return bool false on failure / mysqli MySQLi object instance on success
  */
 public function connect()
 {
     // Try and connect to the database
     if (!isset(self::$connection)) {
         // Load configuration as an array. Use the actual location of your configuration file
         self::$connection = new mysqli('localhost', 'root', 'root', 'servicioslegales');
     }
     // If connection was not successful, handle the error
     if (self::$connection === false) {
         // Handle error - notify administrator, log to a file, show an error screen, etc.
         return false;
     }
     return self::$connection;
 }

 /**
  * Connect to the database
  * 
  * @return bool false on failure / mysqli MySQLi object instance on success
  */
 public function connect()
 {
     // Try and connect to the database
     if (!isset(self::$connection)) {
         // Load configuration as an array. Use the actual location of your configuration file
         // Put the configuration file outside of the document root
         self::$connection = new mysqli(DB_SERVER, DB_USER, DB_PASSWORD, DB_NAME);
     }
     // If connection was not successful, handle the error
     if (self::$connection === false) {
         // Handle error - notify administrator, log to a file, show an error screen, etc.
         return false;
     }
     return self::$connection;
 }

 public function connect()
 {
     // Try and connect to the database, if a connection has not been established yet
     if (!isset(self::$connection)) {
         // Load configuration
         self::$connection = mysqli_connect(host, user, pass, dbname) or die("no connection");
         mysqli_select_db(self::$connection, 'moviefy');
     }
     // If connection was not successful, handle the error
     if (self::$connection === false) {
         //Handle Error - notify admin
         return mysqli_connect_error($connection);
     }
     return self::$connection;
 }