session_start();??
????
??if(isset($_SESSION))??
??{???
????echo?”Started”;??
??}??
??else??
??{??
????echo?”Not?Started”;??
??}??
?? 而在php 5.4(即将发行)中,对session的状态进行了细分,可以用如下的方法判断:?
?
session_start();??
????
??$status?=?session_status();??
????
??if($status?==?PHP_SESSION_DISABLED)??
??{??
????echo?”Session?is?Disabled”;??
??}??
??else?if($status?==?PHP_SESSION_NONE?)??
??{??
????echo?”Session?Enabled?but?No?Session?values?Created”;??
??}??
??else??
??{??
????echo?”Session?Enabled?and?Session?values?Created”;??
??}??
? 可以看到,通过使用session_status()返回的是一个int类型的值,表示出session的各种状态,比如禁止(PHP_SESSION_DISABLED ),session还不存在?
(PHP_SESSION_NONE)?
,或者session已经被建立起来了(PHP_SESSION_ACTIVE)?
php出错：Warning: Phpinfo() Has Been Disabled For Security Reasons | php出错：Warning: Phpinfo() Has Been Disabled For Security Reasons ...