这是我将为您制作的一个简单示例,希望对您有所帮助。
SQL:
CREATE TABLE user
(
user_id BIGINT NOT NULL AUTO_INCREMENT,
sex VARCHAR(10) NOT NULL,
CONSTRAINT PK_USER PRIMARY KEY (user_id)
) ENGINE=INNODB;
CREATE TABLE profileview
(
profileview_id BIGINT NOT NULL AUTO_INCREMENT,
user_id BIGINT NOT NULL,
visitor_user_id BIGINT NOT NULL,
date_time DATETIME NOT NULL,
CONSTRAINT PK_PROFILEVIEW PRIMARY KEY (profileview_id)
) ENGINE=INNODB;
ALTER TABLE profileview
ADD FOREIGN KEY FK_PROFILEVIEW_USER(user_id)
REFERENCES user (user_id);
ALTER TABLE profileview
ADD FOREIGN KEY FK_PROFILEVIEW_VISITOR(visitor_user_id)
REFERENCES user (user_id);
PHP:
这是用户个人资料页面的一个简单示例 - www.domain.com/profile.php?id=xxx。此时需要在用户登录站点时在 session 中定义两个变量: $_SESSION['user_id'] (int) / $_SESSION['user_logged'] (boolean)
<?php
if ($_GET && isset($_GET['id']){
if(isset($_SESSION['user_id']){
$profile_user_id = $_GET['id'];
// the user that visits the profile has a session with his/her id on it.
session_start();
$visitor_user_id = $_SESSION['user_id'];
} else {
// if visitor specified an id but there is no session, redirect to login.
header("location: login.php");
}
} else {
// if no id passed redirect to index
header("location: index.php");
}
?>
<html>
<head>
<title>Your title</title>
</head>
<script src="scripts/jquery.js" type="text/javascript"></script>
<script type="text/javascript">
//here you will store the visit with jquery.
$(document).ready(function(){
// store the values from php.
var profile_user_id = <?php echo $profile_user_id ?>;
var visitor_user_id = <?php echo $visitor_user_id ?>;
// here, the user information goes to the visit.php file.
$.post('visit.php' { profile_user_id:profile_user_id, visitor_user_id:visitor_user_id } );
});
</script>
<body>
Here print user information from a SQL select or something of the id passed in the GET.
</body>
</html>
现在,visit.php文件来存储数据:
<?php
if ($_POST && isset($_POST['profile_user_id']) && isset($_POST['visitor_user_id'])) {
session_start();
// this will end the execution of the script if there is no session from user logged
if ($_SESSION['user_logged'] != true) {
exit();
}
// everything is ok, do the process:
// functions.php contains your SQL connection, I suppose you know how to do it.
include('../cgi-bin/functions.php');
$link = dbconn();
$profile_user_id = mysql_real_escape_string($_POST['profile_user_id']);
$visitor_user_id = mysql_real_escape_string($_POST['visitor_user_id']);
// this will store the data in profileview including date and time if id's are not equal.
if($profile_user_id != $visitor_user_id){
$sql = "INSERT INTO profileview (user_id, visitor_user_id, date_time) VALUES ($profile_user_id, $visitor_user_id, NOW())";
mysql_query($sql, $link);
}
}
?>
额外:如果你不知道functions.php做什么,这里是:
<?php
function dbconn() {
if(!include_once('db.php')) {
die('Error include file.');
}
if (!$link = mysql_connect($db['hostname'],$db['username'],$db['password'])) {
die('Error connecting.');
}
if (!mysql_select_db($db['database'])) {
die('Error selecting.');
}
return $link;
}
?>
上面的文件也需要这个文件:在这里设置你的连接参数到你的数据库。
数据库.php
<?php
$db = array(
'hostname' => 'localhost',
'username' => 'root',
'password' => 'mysql',
'database' => 'mydb'
);
?>
- 我建议你把它放在
cgi-bin
你的主机文件夹中以获得更好的实践,正如你在visit.php
文件代码中看到的那样。
现在,创建另一个名为visitors.php?id=xxx
的文件,并select * from
根据user_id
. 此时,您将能够: