php如何設(shè)置p3p頭,很多新手對此不是很清楚,為了幫助大家解決這個難題,下面小編將為大家詳細講解,有這方面需求的人可以來學習下,希望你能有所收獲。
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php設(shè)置p3p頭的方法:1、編輯HOST,加入“127.0.0.1 www.a.com”;2、創(chuàng)建a_setcookie.php和a_getcookie.php等文件;3、通過header設(shè)置p3p頭即可。
本文操作環(huán)境:windows7系統(tǒng)、PHP7.1版、Dell G3電腦。
php怎么設(shè)置p3p頭?
PHP 通過設(shè)置P3P頭來實現(xiàn)跨域訪問COOKIE
我的是CentOS的系統(tǒng)(Linux 內(nèi)核)
編輯HOST
vi /etc/hosts
加入
127.0.0.1 www.a.com 127.0.0.1 www.b.com
首先:創(chuàng)建 a_setcookie.php 文件,內(nèi)容如下:
然后:創(chuàng)建 a_getcookie.php 文件,內(nèi)容如下:
最后:創(chuàng)建 b_setcookie.php 文件,內(nèi)容如下:
----------------------------
三個文件創(chuàng)建完畢后,我們通過瀏覽器依次訪問:
http://www.b.com/b_setcookie.php http://www.a.com/a_getcookie.php
我們會發(fā)現(xiàn),在訪問b.com域的時候,我們并沒有在a.com域設(shè)置上cookie值。
然后我們修改一下a_setcookie.php文件,去掉注釋符號,a_setcookie.php即為:
再次通過瀏覽器依次訪問:
http://www.b.com/b_setcookie.php http://www.a.com/a_getcookie.php
這次,你會發(fā)現(xiàn)在訪問b.com域的時候,我們設(shè)置了a.com域的cookie值。
末了補充一句,似乎只有IE對跨域訪問COOKIE限制比較嚴格,上述代碼在FIREFOX下測試,即使不發(fā)送P3P頭信息,也能成功。
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undefined
通過Fiddler可以方便的知道上面P3P代碼的含義
P3P Header is present: CP="CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR" Compact Policy token is present. A trailing 'o' means opt-out, a trailing 'i' means opt-in. CURa Information is used to complete the activity for which it was provided. ADMa Information may be used for the technical support of the Web site and its computer system. DEVa Information may be used to enhance, evaluate, or otherwise review the site, service, product, or market. PSAo Information may be used to create or build a record of a particular individual or computer that is tied to a pseudonymous identifier, without tying identified data (such as name, address, phone number, or email address) to the record. This profile will be used to determine the habits, interests, or other characteristics of individuals for purpose of research, analysis and reporting, but it will not be used to attempt to identify specific individuals. PSDo Information may be used to create or build a record of a particular individual or computer that is tied to a pseudonymous identifier, without tying identified data (such as name, address, phone number, or email address) to the record. This profile will be used to determine the habits, interests, or other characteristics of individuals to make a decision that directly affects that individual, but it will not be used to attempt to identify specific individuals. OUR We share information with ourselves and/or entities acting as our agents or entities for whom we are acting as an agent. BUS Info is retained under a service provider's stated business practices. Sites MUST have a retention policy that establishes a destruction time table. The retention policy MUST be included in or linked from the site's human-readable privacy policy. UNI Non-financial identifiers, excluding government-issued identifiers, issued for purposes of consistently identifying or recognizing the individual. These include identifiers issued by a Web site or service. PUR Information actively generated by the purchase of a product or service, including information about the method of payment. INT Data actively generated from or reflecting explicit interactions with a service provider through its site -- such as queries to a search engine, or logs of account activity. DEM Data about an individual's characteristics -- such as gender, age, and income. STA Mechanisms for maintaining a stateful session with a user or automatically recognizing users who have visited a particular site or accessed particular content previously -- such as HTTP cookies. PRE Data about an individual's likes and dislikes -- such as favorite color or musical tastes. COM Information about the computer system that the individual is using to access the network -- such as the IP number, domain name, browser type or operating system. NAV Data passively generated by browsing the Web site -- such as which pages are visited, and how long users stay on each page. OTC Other types of data not captured by the above definitions. NOI Web Site does not collected identified data. DSP The privacy policy contains DISPUTES elements. COR Errors or wrongful actions arising in connection with the privacy policy will be remedied by the service. Validate at: http://www.w3.org/P3P/validator.html Learn more at: http://www.fiddlertool.com/redir/?id=p3pinfo
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