您的位置：首页 > 编程语言 > PHP开发

用PHP和MYSQL建立计数器过程详解

2008-05-01 03:53 651 查看

运行MYSQL.EXE
MYSQL> create database counter;
Query OK, 1 row affected (0.10 sec)
MYSQL> use counter;
Database changed
MYSQL> create table tl(id integer(2),count integer(5));
Query OK, 0 rows affected (0.21 sec)
MYSQL> show columns from tl;
+-------+--------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+--------+------+-----+---------+-------+
| id | int(2) | YES | | NULL | |
| count | int(5) | YES | | NULL | |
+-------+--------+------+-----+---------+-------+
2 rows in set (0.05 sec)
MYSQL> select * from tl;
Empty set (0.08 sec)
MYSQL> insert into tl(id,count) values(1,1);
Query OK, 1 row affected (0.02 sec)
MYSQL> select * from tl;
+------+-------+
| id | count |
+------+-------+
| 1 | 1 |
+------+-------+
1 row in set (0.03 sec)
下面编写HTML文件内容：

<html>
<body>
<?PHP
$myvar = "来访人数：";
echo $myvar;
?>
<?PHP
MYSQL_connect() or die("there are problems to connect to MYSQL!");
$query="select * from tl";
$result=MYSQL_db_query("counter",$query);
if($result){
$r=MYSQL_fetch_array($result);
$counter=$r["count"];
$counter=$counter+1;
echo $counter;
$query="update tl set count='$counter' where id=1";
$result=MYSQL_db_query("counter",$query);
MYSQL_close();
}
?>
</body>
</html>

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签：

相关文章推荐

新的分享

章节导航