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PHP web page will no longer appear expired when going back_PHP tutorial

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Release： 2016-07-21 15:57:36
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ob_start(); 
if(function_exists(session_cache_limiter)) { session_cache_limiter("private, must-revalidate"); 
} 
session_start() 
?> 

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/317832.htmlTechArticle?php ob_start(); if(function_exists(session_cache_limiter)){session_cache_limiter("private,must-revalidate"); } session_start() ?...
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cache exists function l php session start No Web page Expired
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