Javascript 如何基于Cookie值显示内容
我想用美元和英镑显示产品价格。我的默认货币是美元。如果用户来自英国ip范围,此脚本将在cookie中设置货币代码GBP 如何基于Cookie值显示价格(java脚本方法) 脚本:Javascript 如何基于Cookie值显示内容,javascript,php,jquery,cookies,Javascript,Php,Jquery,Cookies,我想用美元和英镑显示产品价格。我的默认货币是美元。如果用户来自英国ip范围,此脚本将在cookie中设置货币代码GBP 如何基于Cookie值显示价格(java脚本方法) 脚本: <?php $con=mysqli_connect("localhost","userip","asdfgh","userip"); $ip = $_SERVER['REMOTE_ADDR']; $query = "SELECT id FROM ip WHERE '$ip' BETWEEN f AND t"; /
<?php
$con=mysqli_connect("localhost","userip","asdfgh","userip");
$ip = $_SERVER['REMOTE_ADDR'];
$query = "SELECT id FROM ip WHERE '$ip' BETWEEN f AND t"; // check user ip from UK ip range
$result = mysqli_query($con,$query);
if(mysqli_num_rows($result) > 0)
{
setcookie('currency', 'GBP', time()+604800);
}
mysqli_close($con);
?>
您可以从$\u COOKIE全局变量读取:
switch ($_COOKIE['currency']) {
case "GBP": [...]; break;
default: [...]
更多详细信息:在PHP中,您可以通过$\u COOKIE
访问COOKIE
switch($_COOKIE['currency']) {
case 'GBP':
$price = <...>;
break;
// USD
default:
$price = <...>;
}
开关($\u COOKIE['currency'])){
案例“英镑”:
$price=;
打破
//美元
违约:
$price=;
}
在JavaScript中有点不同:
函数getCookie(cname)
{
变量名称=cname+“=”;
var ca=document.cookie.split(“;”);
对于(var i=0;i,如果您想在javascript中执行此操作,可以使用下面的函数来读/写cookie
function read_cookie(name) {
var arg=name+"=";
var alen=arg.length;
var clen=document.cookie.length;
var i=0;
while (i<clen){
var j=i+alen;
if (document.cookie.substring(i, j)==arg)
return arguments_cookie(j);
i=document.cookie.indexOf(" ",i)+1;
if (i==0) break;
}
return null;
}
function write_cookie(name, val, expires) {
document.cookie=name+"="+escape(val)+
((expires==null) ? "" : ("; expires="+expires.toGMTString()));
}
function arguments_cookie(offset){
var endstr=document.cookie.indexOf (";", offset);
if (endstr==-1) endstr=document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
函数读取\u cookie(名称){
var arg=name+“=”;
var alen=arg.length;
var clen=document.cookie.length;
var i=0;
while(iin java脚本方法?确保正确验证cookie内容,它们很可能被注入恶意数据,祝你好运!
function read_cookie(name) {
var arg=name+"=";
var alen=arg.length;
var clen=document.cookie.length;
var i=0;
while (i<clen){
var j=i+alen;
if (document.cookie.substring(i, j)==arg)
return arguments_cookie(j);
i=document.cookie.indexOf(" ",i)+1;
if (i==0) break;
}
return null;
}
function write_cookie(name, val, expires) {
document.cookie=name+"="+escape(val)+
((expires==null) ? "" : ("; expires="+expires.toGMTString()));
}
function arguments_cookie(offset){
var endstr=document.cookie.indexOf (";", offset);
if (endstr==-1) endstr=document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}