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php怎么设置cookie过期时间?

Jun 06, 2016 pm 08:06 PM
cookiephp

php设置cookie过期时间的方法:使用setcookie函数,设置该函数的第3个参数为有限时间戳即可;例“setcookie("名称", "值", time()+3600*24)”,就是设置一天后过期。

php怎么设置cookie过期时间?

php怎么设置cookie过期时间?

php设置cookie的过期时间很简单,我们只需要使用setcookie函数即可设置

setcookie函数介绍

setcookie(name,value,expire,path,domain,secure)

参数: 

  • name  设置cookie 的名称,该参数的值必须设置。

  • value    设置cookie的值,该参数必须设置。

  • expire    可选。设置cookie的有效期,一般为时间戳。

  • path    可选。设置cookie的服务器路径。

  • domain    可选。设置cookie的域名。

  • secure    可选。规定是否通过安全的 HTTPS 连接来传输cookie。

可以看出,要设置cookie过期时间,只需要设置滴三个参数即可。

设置cookie过期时间

设置cookie在一天后过期失效

setcookie ("mycookie", "123", time()+3600*24);

time()表示当前时间的时间戳,time()+3600*24就表示未来24小时的时间戳。

同理,设置cookie在一年后过期失效

setcookie ("mycookie", "123", time()+3600*24*365);

清除cookie

将cookie过期时间设置为过去时间

setcookie ("name", "xiaoming", time() - 1);

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