How to use php session_cache_expire function

php session_cache_expire function is used to return the expiration time of the current cache. Its syntax is int session_cache_expire ([ string $new_cache_expire ] ).

#How to use the session_cache_expire function?

Function: Return the expiration time of the current cache

Syntax:

int session_cache_expire ([ string $new_cache_expire ] )

Parameters:

new_cache_expire, if new_cache_expire is given, use the value of new_cache_expire to set the current cache expiration time.

Description:

session_cache_expire() returns the setting value of session.cache_expire. When the request starts, the cache expiration time will be reset to 180 and stored in the session.cache_expire configuration item. Therefore, for each request, session_cache_expire() needs to be called before the session_start() function is called to set the cache expiration time.

php session_cache_expire() function usage example

<?php
/* 设置缓存限制为 “private” */
session_cache_limiter(&#39;private&#39;);
$cache_limiter = session_cache_limiter();
/* 设置缓存过期时间为 30 分钟 */
session_cache_expire(30);
$cache_expire = session_cache_expire();
/* 开始会话 */
session_start();
echo "The cache limiter is now set to $cache_limiter<br />";
echo "The cached session pages expire after $cache_expire minutes";
?>

Output:

The cache limiter is now set to private
The cached session pages expire after 30 minutes

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