php try catch: catch exceptions, throw exceptions:
/** * 构造函数:自动加载连接数据库 * @param $database $key * @return */ private function __construct($database = array(), $key){ try{ $this->server = $database['db_host']; $this->username = $database['db_user']; $this->password = $database['db_pwd']; $this->database_name = $database['db_name']; $this->database_type = $database['db_type']; $this->database_port = $database['db_port']; if($this->database_type == 'mysql'){ $this->pdo = new PDO($this->database_type . ':host=' . $this->server . ';port=' . $this->database_port . ';dbname=' . $this->database_name, $this->username, $this->password, array(PDO::ATTR_TIMEOUT => self::TIME_OUT)); }else{ $this->pdo = new PDO ("dblib:host=$this->server:$this->database_port; dbname=$this->database_name","$this->username","$this->password"); } $this->pdo->exec('SET NAMES \'' . $this->charset . '\''); self::$pdo_ref[$key] = &$this->pdo; }catch(PDOException $e){ echo $e->getMessage(); } }
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