如何在PHP中使用rand函数设置随机cookie值
问题描述：
如何在PHP中使用rand函数设置随机cookie值
How to set random cookie value using rand function in PHP
我不希望在页面刷新后更改值（一旦分配了它）。直到cookie销毁
I don't want to change the value while page refreshed when it once assigned.. until cookie destroy
我的代码如下
<?php
global $random;
$random= rand(0, 9999999);
if(!isset($_COOKIE[$random])) {
setcookie('user_cookie',$random, time() + (1), "/"); echo $_COOKIE[$random];
}
else {
echo "Cookie '" . $_COOKIE[$random] . "' is set!<br>";
}
exit();
?>
答
if(!isset($_COOKIE['lg'])) {
setcookie('lg', rand(1,10000), time() + (86400 * 30), "/"); // 86400 = 1 day
}
echo $_COOKIE['lg'];
您可以检查是否未设置，然后进行设置。
You can check if it is not set then set it.