phpsessionheader,PHP启用session后对HTTPHeader响应头的影响

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PHP启用session后对响应头的影响

PHP启用session后&＃xff0c;将会给响应头加上如下的http header

Expires: Thu, 19 Nov 1981 08:52:00 GMT

Cache-Control: no-store, no-cache, must-revalidate

Pragma: no-cache

准备示例代码 "session.php" &＃xff1a;

准备示例代码 "nosession.php"

通过PHP命令行 php -S 127.0.0.1:9999 启用临时server。

test&＃64;test:~/html$ ls

favicon.ico index.php nosession.php session.php

test&＃64;test:~/html$ php -S 127.0.0.1:9999

PHP 7.0.32-0ubuntu0.16.04.1 Development Server started at Thu Feb 21 20:57:07 2019

Listening on http://127.0.0.1:9999

Document root is /home/test/html

Press Ctrl-C to quit.

请求结果&＃xff1a;

请求启用session的接口结果如下

test&＃64;test:~$ curl -i "http://127.0.0.1:9999/session.php"

HTTP/1.1 200 OK

Host: 127.0.0.1:9999

Connection: close

X-Powered-By: PHP/7.0.32-0ubuntu0.16.04.1

Set-COOKIE: PHPSESSID&＃61;6htonb74ku0cvnu8vvkobkug92; path&＃61;/

Expires: Thu, 19 Nov 1981 08:52:00 GMT

Cache-Control: no-store, no-cache, must-revalidate

Pragma: no-cache

Content-type: text/html; charset&＃61;UTF-8

hello world: has session

test&＃64;test:~$

请求没有启用的session的接口的结果如下

test&＃64;test:~$ curl -i "http://127.0.0.1:9999/nosession.php"

HTTP/1.1 200 OK

Host: 127.0.0.1:9999

Connection: close

X-Powered-By: PHP/7.0.32-0ubuntu0.16.04.1

Content-type: text/html; charset&＃61;UTF-8

hello world: no session

test&＃64;test:~$