1.思路:用户查看物品id的时候,记录查看物品id,以及物品的其他信息,[以ID-物品信息,ID-物品信息]格式存入cookie
数据库Helper:mysqlHelper.class.php
<?php
/*
@author:luowen
@time:2013-12-17
@desc:mysql helper
*/
class MysqlHelper{
private static $instance = null;
private $host = null;
private $username = null;
private $password = null;
private $database = null;
private $conn = null;
final private function __construct($conf){
$this -> host = $conf['host'];
$this -> username = $conf['username'];
$this -> password = $conf['password'];
$this -> database = $conf['database'];
$this -> conn();
$this -> query("use " . $this -> database);
}
private function __clone(){}
private function conn(){
$this -> conn = mysql_connect($this -> host,$this -> username, $this -> password);
if(!$this -> conn){
die(mysql_error());
}
}
public static function getInstance($conf){
if(!(self::$instance instanceof self))
MysqlHelper::$instance = new self($conf);
return MysqlHelper::$instance;
}
public function getOne($sql){
$source = $this -> query($sql);
$resSource = null;
if($row = mysql_fetch_assoc($source)){
$resSource = $row;
}
$this -> freeSource($source);
return $resSource;
}
public function getAll($sql){
$source = $this -> query($sql);
$resSource = array();
while($row = mysql_fetch_assoc($source))
{
$resSource[] = $row;
}
$this -> freeSource($source);
return $resSource;
}
public function query($sql){
return mysql_query($sql,$this -> conn);
}
public function close(){
mysql_close($this -> conn);
}
private function freeSource($resource){
mysql_free_result($resource);
}
}
2,数据库配置文件db.inc.php
<?php
/*
db configure file
*/
$conf = array(
"host" => "localhost",
"username" => "root",
"password" => "luowen",
"database" => "test"
);
3,数据表模型luowenModel.class.php
<?php
/*
luowen表模型
*/
class LuowenModel{
private $tableName = "luowen";
private $dbInstance = null;
public function __construct($db){
$this -> dbInstance = $db;
}
public function getOne($id){
$sql = "select * from " . $this -> tableName . " where id = " . $id;
$res = $this -> dbInstance -> getOne($sql);
return $res;
}
public function getAll(){
$sql = "select * from " . $this -> tableName;
return $this -> dbInstance -> getAll($sql);
}
}
4,首页index.php
<?php
/*
@author:luowen
@time:2013-12-17
@desc:web view history store
*/
include_once("./db.inc.php");
include_once("./mysqlHelper.class.php");
include_once("./luowenModel.class.php");
$db = MysqlHelper::getInstance($conf);
$luowenModel = new LuowenModel($db);
//获取所有数据
$res = $luowenModel -> getAll();
?>
<html>
<head>
<title>index</title>
</head>
<body>
<table cellspacing = 0 cellpadding=0 style='border-collapse:collapse;' border = '1'>
<thead>
<th>Id</th>
<th>Username</th>
<th>Age</th>
<th>Date</th>
<th>CreateTime</th>
<th>Detial</th>
</thead>
<tbody>
<?php foreach($res as $k => $v){ ?>
<tr>
<?php foreach($v as $val){ ?>
<td><?php echo $val; ?></td>
<?php } ?>
<td><a href="./detial.php?id=<?php echo $v["id"] ?>">查看详情</a></td>
</tr>
<?php } ?>
</tbody>
<table>
<h1>浏览历史</h1>
<table border="1"cellpadding=0 cellspacing=0 style="border-collapse:collapse;">
<thead>
<th>ID</th>
<th>Name</th>
</thead>
<tbody>
<?php
//获取cookie里面存的数据 格式为:ID1-name1,ID2-name2
@$list = $_COOKIE['viewHistory'];
$viewArr = array_reverse(explode(',',$list));
foreach($viewArr as $val){ ?>
<tr>
<td><?php echo substr($val,0,strpos($val,'-'));?></td>
<td> <?php echo substr($val,strpos($val,'-')+1,strlen($val));?></td>
</tr>
<?php } ?>
</tbody>
</table>
<hr/>
</body>
</html>
5,物品详细页
<?php
include_once("./db.inc.php");
include_once("./mysqlHelper.class.php");
include_once("./luowenModel.class.php");
$db = MysqlHelper::getInstance($conf);
$luowenModel = new LuowenModel($db);
@$id = $_GET['id'];
if(!is_numeric($id)){
echo "ID错误!";
echo "<br/><a href='./index.php'>返回首页</a>";
return;
}
$res = $luowenModel -> getOne($id);
if($res == null)
{
echo "没有此数据!";
return;
}
$name = $res['name'];
buildCookie($id, $name);
//构造history历史记录
function buildCookie($id,$name){
$viewArr = array();
@$viewBooks = $_COOKIE['viewHistory'];
if(!isset($viewBooks)){
setCookie("viewHistory",$id.'-'.$name,time()+3600);
return;
}
$list = explode(',',$viewBooks);
foreach($list as $key => $val){
$flag = isInArr($list,$val,$key,$id,$name);
if($flag)break;
}
if(!$flag){
if(count($list) >= 10){
unset($list[0]);
array_push($list,$id.'-'.$name);
}else{
array_push($list,$id.'-'.$name);
}
}
$resHistory = implode(',',$list);
//$trimHistory = substr($resHistory,0,strlen($resHistory));
setCookie("viewHistory",$resHistory,time()+1000);
return;
}
//判断是否在数组中
function isInArr(&$list,$val,$key,$id,$name)
{
if($val == $id.'-'.$name){
unset($list[$key]);
array_push($list,$id."-".$name);
return true;
}
}
?>
<html>
<head>
<title>detial </title>
</head>
<body>
<h1>detial</h1>
<hr/>
<table border='1' cellspacing=0 style="border-collapse:collapse;" cellpadding='0'>
<thead>
<th>Id</th>
<th>name</th>
<th>age</th>
<th>date</th>
<th>createdate</th>
</thead>
<tbody>
<tr>
<?php foreach($res as $val){ ?>
<td><?php echo $val; ?></td>
<?php } ?>
</body>
</html>
