session_abort()

(PHP 5 >= 5.6.0, PHP 7)

中断会话阵列更改并完成会话

说明

session_abort()该函数的返回类型现在为bool。以前，它是无效的。

参见

• $_SESSION
• Thesession.auto_startconfiguration directive
• session_start()启动新会话或者重用现有会话
• session_reset()Re-initialize session array with original values
• session_commit()session_write_close 的别名

To better understand this function you should execute this code first :

Then you should execute this code :

So if you have an open session , session_abort() will simply close it without effecting the external session data , so you can reload your data again from your path that you chose .

session_abort()  closes the current session and discards the changes applied to Session array in the current page  , it doesn't delete the session file 
let me explain with one example. 
page 1.php :

when you open this page , a session file is created on the server (to find out where session files are saved run "echo session_save_path()" )  with the name of session_id  and the content of  the variable :
  sess_o22iabs75j93uhc7i4jf1lecjk  (file name)
 city|s:6:"Sydney";               (content)
if we go to 2.php containing this code :

when session_abort is executed , the session is closed and the change which here is the 'country' element of Session array is discarded . 
Output : 
city|s:6:"Sydney";country|s:9:"Australia";
city|s:6:"Sydney";

demo1

demo2

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