请问php如何让cookie过晚上24点即自动清除？

Question

php如何让cookie过晚上24点即自动清除

Answer 1

生成cookies时，计算好离凌晨12点还剩下多少秒。然后$tomorrow = mktime(0,0,0,date('m'), date('d')+1, date('Y'));setcookie("user","$abc", time()+$tomorrow-time());简化为setcookie("user","$abc", $tomorrow);