php封装类
封装类
1 <?php 2 class DBDA{ 3 public $host = "localhost"; 4 public $uid = "root"; 5 public $pwd = ""; 6 public $dbname = "0710"; 7 8 /* 9 query方法:执行用户给的SQL语句,并返回相应的结果 10 $sql:用户需要执行的SQL语句 11 $type:用户需要执行的SQL语句的类型 12 return:如果是增删改返回true或false,如果是查询返回二维数组 13 */ 14 public function query($sql,$type=0){ 15 $db = new MySQLi($this->host,$this->uid,$this->pwd,$this->dbname); 16 if(mysqli_connect_error()){ 17 return "连接失败!"; 18 } 19 $result = $db->query($sql); 20 if($type){ 21 return $result; 22 }else{ 23 return $result->fetch_all(); 24 } 25 } 26 }