簡單的php Mysql類(查詢 刪除 更新)

代碼如下

複製代碼

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;         $this->connect();     }     private function connect()//串連函數     {         mysql_connect($this->host,$this->user,$this->pass) or die ("串連資料庫伺服器失敗!");         mysql_select_db($this->database) or die ("串連資料庫失敗!");         mysql_query("set names $this->charset");            }     function select($sql,$tab,$col,$value)//選擇函數     {         $select=mysql_query("select $sql from $tab where $col=$value");         $row=mysql_fetch_array($select);         return $row;     }     function insert($tab,$col,$value)//插入資料函數     {         mysql_query("INSERT INTO $tab($col)values($value)");     }     function update($tab,$col,$new_value,$colm,$value)//更新資料函數     {         mysql_query("UPDATE $tab SET $col=$new_value where $colm=$value");        }     function delete($tab,$col,$value)//刪除資料函數     {         mysql_query("DELETE FROM $tab where $col=$value");         }     function close()//關閉串連函數     {     mysql_close();       } } //$mysql=new mysql("127.0.0.1","root","120360150","test","gbk");串連資料庫 //$sql=$mysql->select("*","admin","id","3");//選擇資料 //print_r($sql);//列印返回的數組 //$mysql->insert("admin","user_name,user_pass","'123','123'");插入資料 //$mysql->update("admin","user_pass","22","id","3");更新資料 //$mysql->delete("admin","id","4");刪除資料 //$mysql->close();關閉串連 ?>