我正在设计一个房地产网站。我的网站上有很多广告，感谢我的朋友Arsh Singh，我创造了一个最受欢迎的广告。或者＆＃39;保存＆＃39;每个帖子上的按钮，用于根据用户在特定页面中保存所选页面标题，以便用户在需要时查看帖子。
现在，当用户点击＆＃34;添加到收藏夹＆＃34;时，我想将广告的ID发送到收藏页面。因此，基于id我可以从数据库中获取某些广告数据
我可以这样做吗？怎么样？这是我当前的代码，它只能将页面标题发送到收藏页面。任何想法？
<!DOCTYPE html>
<html>
<head>
<title>New page name</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<script src=favoritecookie.js></script>
</head>
<body>
<a href="javascript:void(0);" id="addTofav">Add me to fav</a>
<ul id="appendfavs">
</ul>
<?php
error_reporting(0);
include("config.php");
(is_numeric($_GET['ID'])) ? $ID = $_GET['ID'] : $ID = 1;
$result = mysqli_query($connect,"SELECT*FROM ".$db_table." WHERE idhome = $ID");
?>
<?php while($row = mysqli_fetch_array($result)):
$price=$row['price'];
$rent=$row['rent'];
$room=$row['room'];
$date=$row['date'];
?>
<?php
echo"price";
echo"room";
echo"date";
?>
<?php endwhile;?>
</body>
</html>
//favoritecookie.js
/*
* Create cookie with name and value.
* In your case the value will be a json array.
*/
function createCookie(name, value, days) {
var expires = '',
date = new Date();
if (days) {
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
expires = '; expires=' + date.toGMTString();
}
document.cookie = name + '=' + value + expires + '; path=/';
}
/*
* Read cookie by name.
* In your case the return value will be a json array with list of pages saved.
*/
function readCookie(name) {
var nameEQ = name + '=',
allCookies = document.cookie.split(';'),
i,
cookie;
for (i = 0; i < allCookies.length; i += 1) {
cookie = allCookies[i];
while (cookie.charAt(0) === ' ') {
cookie = cookie.substring(1, cookie.length);
}
if (cookie.indexOf(nameEQ) === 0) {
return cookie.substring(nameEQ.length, cookie.length);
}
}
return null;
}
/*
* Erase cookie with name.
* You can also erase/delete the cookie with name.
*/
function eraseCookie(name) {
createCookie(name, '', -1);
}
var faves = new Array();
function isAlready(){
var is = false;
$.each(faves,function(index,value){
if(this.url == window.location.href){
console.log(index);
faves.splice(index,1);
is = true;
}
});
return is;
}
$(function(){
var url = window.location.href; // current page url
$(document.body).on('click','#addTofav',function(e){
e.preventDefault();
var pageTitle = $(document).find("title").text();
if(isAlready()){
} else {
var fav = {'title':pageTitle,'url':url};
faves.push(fav);
}
var stringified = JSON.stringify(faves);
createCookie('favespages', stringified);
location.reload();
});
$(document.body).on('click','.remove',function(){
var id = $(this).data('id');
faves.splice(id,1);
var stringified = JSON.stringify(faves);
createCookie('favespages', stringified);
location.reload();
});
var myfaves = JSON.parse(readCookie('favespages'));
if(myfaves){
faves = myfaves;
} else {
faves = new Array();
}
$.each(myfaves,function(index,value){
var element = '<li class="'+index+'"><h4>'+value.title+'</h4> <a href="'+value.url+'">Open page</a> '+
'<a href="javascript:void(0);" class="remove" data-id="'+index+'">Remove me</a>';
$('#appendfavs').append(element);
});
});
答案 0 :(得分：4)
Cookie中的JSON 您可以使用JSON通过序列化JSON将详细信息（id，post name等）存储到cookie中： jquery save json data object in cookie
但是，出于安全考虑，您不应将数据库表名存储在Cookie中。
PHP Cookie访问 https://davidwalsh.name/php-cookies
答案 1 :(得分：3)
我会使用纯PHP ... setcookie（）放置一个cookie，并在需要时使用PHP $ _COOKIE读回来。由于需要存储大量数据，无论是结构化的还是相关的，我都会创建一个关联数组，相应地填充它，然后在将它保存到cookie之前使用PHP serialize（）;阅读时unserialize（）：
保存：
a) $data = array("ID"=>value, "otherdata"=>value...etc);
b) $dataPacked = serialize($data);
c) setcookie("cookieName", $dataPacked);
读：
a) $dataPacked = $_COOKIE["cookieName"];
b) $data = unserialize($dataPacked);
然后根据需要使用$ data数组。如果我需要一些带有该数据的Javascript，我会这样做：
<script>
var jsVar = "<?php echo $data['key'];?>";
或者使用循环来发送更多来自$ data等的变量。
答案 2 :(得分：1)
最后我得到了答案。替换这个javascript代码而不是问题javascript（favoritecookie.js），你会发现它就像一个charm.with这个你的代码可以在cookie中保存id然后在任何你想要的地方检索它
<script>
/*
* Create cookie with name and value.
* In your case the value will be a json array.
*/
function createCookie(name, value, days) {
var expires = '',
date = new Date();
if (days) {
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
expires = '; expires=' + date.toGMTString();
}
document.cookie = name + '=' + value + expires + '; path=/';
}
/*
* Read cookie by name.
* In your case the return value will be a json array with list of pages saved.
*/
function readCookie(name) {
var nameEQ = name + '=',
allCookies = document.cookie.split(';'),
i,
cookie;
for (i = 0; i < allCookies.length; i += 1) {
cookie = allCookies[i];
while (cookie.charAt(0) === ' ') {
cookie = cookie.substring(1, cookie.length);
}
if (cookie.indexOf(nameEQ) === 0) {
return cookie.substring(nameEQ.length, cookie.length);
}
}
return null;
}
function eraseCookie(name) {
createCookie(name,"",-1);
}
var faves = new Array();
function isAlready(){
var is = false;
$.each(faves,function(index,value){
if(this.url == window.location.href){
console.log(index);
faves.splice(index,1);
is = true;
}
});
return is;
}
$(function(){
var url = window.location.href; // current page url
var favID;
var query = window.location.search.substring(1);
var vars = query.split("&");
for (var i=0;i<vars.length;i++) {
var pair = vars[i].split("=");
var favID = (pair[0]=='ID' ? pair[1] :1)
//alert(favID);
}
$(document.body).on('click','#addTofav',function(){
if(isAlready()){
} else {
var fav = {'favoriteid':favID,'url':url};
faves.push(fav);//The push() method adds new items (fav) to the end of an array (faves), and returns the new length.
}
var stringified = JSON.stringify(faves);
createCookie('favespages', stringified);
location.reload();
});
$(document.body).on('click','.remove',function(){
var id = $(this).data('id');
faves.splice(id,1);
var stringified = JSON.stringify(faves);
createCookie('favespages', stringified);
location.reload();
});
var myfaves = JSON.parse(readCookie('favespages'));
if(myfaves){
faves = myfaves;
} else {
faves = new Array();
}
$.each(myfaves,function(index,value){
var element = '<li class="'+index+'"><h4>'+value.favoriteid+'</h4> '+
'<a href="javascript:void(0);" class="remove" data-id="'+index+'">Remove me</a>';
$('#appendfavs').append(element);
});
});
</script>
答案 3 :(得分：0)
这是重构的代码，效果更好（来自SO answer）：
/*
* Create cookie with name and value.
* In your case the value will be a json array.
*/
function createCookie(name, value, days) {
var expires = '',
date = new Date();
if (days) {
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
expires = '; expires=' + date.toGMTString();
}
document.cookie = name + '=' + value + expires + '; path=/';
}
/*
* Read cookie by name.
* In your case the return value will be a json array with list of pages saved.
*/
function readCookie(name) {
var nameEQ = name + '=',
allCookies = document.cookie.split(';'),
i,
cookie;
for (i = 0; i < allCookies.length; i += 1) {
cookie = allCookies[i];
while (cookie.charAt(0) === ' ') {
cookie = cookie.substring(1, cookie.length);
}
if (cookie.indexOf(nameEQ) === 0) {
return cookie.substring(nameEQ.length, cookie.length);
}
}
return null;
}
/*
* Erase cookie with name.
* You can also erase/delete the cookie with name.
*/
function eraseCookie(name) {
createCookie(name, '', -1);
}
var faves = {
add: function (new_obj) {
var old_array = faves.get();
old_array.push(new_obj);
faves.create(old_array);
},
remove_index: function (index) {
var old_array = faves.get();
old_array.splice(index, 1);
faves.create(old_array);
},
remove_id: function (id) {
var old_array = faves.get();
var id_index = faves.get_id_index(id);
faves.remove_index(id_index);
},
create: function (arr) {
var stringified = JSON.stringify(arr);
createCookie('favespages', stringified);
},
get: function () {
return JSON.parse(readCookie('favespages')) || [];
},
get_id_index: function (id) {
var old_array = faves.get();
var id_index = -1;
$.each(old_array, function (index, val) {
if (val.id == id) {
id_index = index;
}
});
return id_index;
},
update_list: function () {
$("#appendfavs").empty();
$.each(faves.get(), function (index, value) {
var element = '<li class="' + index + '"><h4>' + value.id + '</h4> <a href="' + value.url + '">Open page</a> ' +
'<a href="javascript:void(0);" class="remove" data-id="' + value.id + '">Remove me</a>';
$('#appendfavs').append(element);
});
}
}
$(function () {
var url = window.location.href;
$(document.body).on('click', '#addTofav', function (e) {
var pageId = window.location.search.match(/ID=(\d+)/)[1];
if (faves.get_id_index(pageId) !== -1) {
faves.remove_id(pageId);
}
else {
faves.add({
id: pageId,
url: url
});
}
faves.update_list();
});
$(document.body).on('click', '.remove', function () {
var url = $(this).data('id');
faves.remove_id(url);
faves.update_list();
});
$(window).on('focus', function () {
faves.update_list();
});
faves.update_list();
});