php开发_链接mysql数据库的一个类_PHP教程
运行效果；
conn.php
1
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 $message.'
'.$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 www.2cto.com
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 ?>
摘自 Hongten