php开发_链接mysql数据库的一个类

 1 <?php
 2 class ConnectionMySQL{
 3     //主机
 4     private $host="localhost";
 5     //数据库的username
 6     private $name="root";
 7     //数据库的password
 8     private $pass="";
 9     //数据库名称
10     private $table="phptest";
11     //编码形式
12     private $ut="utf-8";
13 
14 
15     //构造函数
16     function __construct(){
17         $this->ut=$ut;
18         $this->connect();
19 
20     }
21 
22     //数据库的链接
23     function connect(){
24         $link=mysql_connect($this->host,$this->name,$this->pass) or die ($this->error());
25         mysql_select_db($this->table,$link) or die("没该数据库：".$this->table);
26         mysql_query("SET NAMES '$this->ut'");
27     }
28 
29     function query($sql, $type = '') {
30         if(!($query = mysql_query($sql))) $this->show('Say:', $sql);
31         return $query;
32     }
33 
34     function show($message = '', $sql = '') {
35         if(!$sql) echo $message;
36         else echo $message.'<br>'.$sql;
37     }
38 
39     function affected_rows() {
40         return mysql_affected_rows();
41     }
42 
43     function result($query, $row) {
44         return mysql_result($query, $row);
45     }
46 
47     function num_rows($query) {
48         return @mysql_num_rows($query);
49     }
50 
51     function num_fields($query) {
52         return mysql_num_fields($query);
53     }
54 
55     function free_result($query) {
56         return mysql_free_result($query);
57     }
58 
59     function insert_id() {
60         return mysql_insert_id();
61     }
62 
63     function fetch_row($query) {
64         return mysql_fetch_row($query);
65     }
66 
67     function version() {
68         return mysql_get_server_info();
69     }
70 
71     function close() {
72         return mysql_close();
73     }
74 
75     //向$table表中插入值
76     function fn_insert($table,$name,$value){
77         $this->query("insert into $table ($name) value ($value)");
78     }
79     //根据$id值删除表$table中的一条记录
80     function fn_delete($table,$id,$value){
81         $this->query("delete from $table where $id=$value");
82         echo "id为". $id." 的记录被成功删除!";
83     }
84 }
85 
86 $db =  new ConnectionMySQL();
87 
88 $db->fn_insert('test','id,name,sex',"'','hongtenzone','M'");
89 $db->fn_delete('test', 'id', 1);
90 
91 ?>