代码如下
<?php
class DbCon(){
private $db_host="";//连接数据库的地址
private $db_type="mysql";//类型
Private $db_user="";//数据库用户名
private $db_pass="";//连接数据库密码
private $db_name="";//数据库名
private $pdo;
//关于数据库的连接
public function _construct(){
$dsn="mysql:host=".$this->db_host.":dbname=".$this->dn_name.":charset=utf8";
$db_user=$this->db_user;
$db_pass=$this->db_pass;
$this->pdo=new PDO($dsn,$db_user,$db_pass);
}
//对于数据库的表增删改查
//删除
public function delete($sql){
return $this->pdo->exec($sql);
}
//修改
public function modify($sql){
return $this->pdo->exec($sql);
}
//查询
public function query($sql){
$pdoStatement=$this->pdo->query($aql,PDO::FETCH_ASSOC);
$data=$pdoStatement->fetchAll();
return $data;
}
public function add($sql){
$this->pdo->exec($sql);
return $this->pdo->LastInsertId();
}
}
?>