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简单的php Mysql类(查询 删除 更新)
时间：2022-06-24 18:48:51 编辑：袖梨 来源：一聚教程网
| 代码如下 | 复制代码 |
| class mysql { private $host; private $user; private $pass; private $database; private $charset; function __construct($host,$user,$pass,$database,$charset) { $this--->host=$host; $this->user=$user; $this->pass=$pass; $this->database=$database; $this->charset=$charset; $this->connect(); } private function connect()//连接函数 { mysql_connect($this->host,$this->user,$this->pass) or die ("连接数据库服务器失败!"); mysql_select_db($this->database) or die ("连接数据库失败!"); mysql_query("set names $this->charset"); } function select($sql,$tab,$col,$value)//选择函数 { $select=mysql_query("select $sql from $tab where $col=$value"); $row=mysql_fetch_array($select); return $row; } function insert($tab,$col,$value)//插入数据函数 { mysql_query("INSERT INTO $tab($col)values($value)"); } function update($tab,$col,$new_value,$colm,$value)//更新数据函数 { mysql_query("UPDATE $tab SET $col=$new_value where $colm=$value"); } function delete($tab,$col,$value)//删除数据函数 { mysql_query("DELETE FROM $tab where $col=$value"); } function close()//关闭连接函数 { mysql_close(); } } //$mysql=new mysql("127.0.0.1","root","120360150","test","gbk");连接数据库 //$sql=$mysql->select("*","admin","id","3");//选择数据 //print_r($sql);//打印返回的数组 //$mysql->insert("admin","user_name,user_pass","'123','123'");插入数据 //$mysql->update("admin","user_pass","22","id","3");更新数据 //$mysql->delete("admin","id","4");删除数据 //$mysql->close();关闭连接 ?> |
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