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>
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