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Home Backend Development PHP Tutorial $_REQUEST、$_GET、$_POST

$_REQUEST、$_GET、$_POST

Jun 23, 2016 pm 02:39 PM

本帖最后由 u010250831 于 2013-12-19 21:23:04 编辑

大家好!很简单的一行代码!结果却是大不一样,我不知道是什么原因!请求大家帮忙解决下!
如下:
我建了一个文件cheshi.php
在其中输入如下代码:
print_r($_GET);
print_r($_POST); 
print_r($_REQUEST);
?>
输出结果为:$_GET、$_POST为空,$_REQUEST输出如下:

Array
(
    [CNZZDATA4212761] => cnzz_eid=792289677-1386735817-http%3A%2F%2Flocalhost&ntime=1386735817&cnzz_a=28<ime=1386736989461
    [bdshare_firstime] => 1386988923534
    [ECS] => Array
        (
            [visit_times] => 8
        )

    [CNZZDATA1670348] => cnzz_eid=262288638-1386581204-http%3A%2F%2Flocalhost&ntime=1387258320&cnzz_a=177&sin=none<ime=1387247284046&rtime=6
    [CNZZDATA3203633] => cnzz_eid=239809964-1387289862-http%3A%2F%2Flocalhost%2F&ntime=1387289862&cnzz_a=9&sin=none<ime=1387289857885
    [CNZZDATA4844992] => cnzz_eid=880915059-1387289981-http%3A%2F%2Flocalhost%2F&ntime=1387289981&cnzz_a=43&sin=none<ime=1387290575798
    [sYQDUGqqzHrefersh_time] => 0
    [DedeUserID] => 1
    [DedeUserID__ckMd5] => 650e0b627c089b98
    [last_vtime] => 1387416855
    [last_vtime__ckMd5] => 303054e738d2f36d
    [last_vid] => admin
    [last_vid__ckMd5] => 9fa4781db73e162f
    [PHPSESSID] => t4sr7oc4v0tfosklcv050riuk3
    [DedeLoginTime] => 1387456002
    [DedeLoginTime__ckMd5] => e539663bd26b3136
)

问题是:这些信息代表了什么!希望得到详细回答!谢谢大家了!
为什么$_REQUEST会有?

回复讨论(解决方案)

在线等待中....!

自己看看吧
http://php.net/manual/zh/reserved.variables.request.php

别发那些说明文档,看不懂!

自己看看吧
http://php.net/manual/zh/reserved.variables.request.php

别发那些说明文档!思想有隔阂发了也看不懂!直白的解释下!深入浅出的那种!追主要的就是解释那些输出是什么!

很明显,除了get,post之外,还有coockie。
print_r($_COOKIE);
看看是不是和print_r($_REQUEST);一样?

CNZZ站长统计 百度分享 DEDE CMS的登录信息 具体意思会英文就明白 

默认情况下包含了 $_GET,$_POST 和 $_COOKIE 的数组。
[cc lang='ini']
; This directive describes the order in which PHP registers GET, POST, Cookie,
; Environment and Built-in variables (G, P, C, E & S respectively, often
; referred to as EGPCS or GPC). Registration is done from left to right, newer
; values override older values.
variables_order = “EGPCS”
[/cc]

这个EGPCS就是说明用$_REQUEST数组获取内容的优先级,其字母的含义分别代表为:E代表$_ENV,G代表$_GET,P代表$_POST,C代表$_COOKIE,S代表$_SESSION。后面出现的数据会覆盖前面写入的数据,其默认的数据写入方式就是EGPCS

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