Lao WangIn PHP, to get all the HTTP request headers, you can use the Getallheaders method, but this method does not exist in any environment, for example, you use fastcgi way to run PHP, there is no such method, so we need to consider other methods,
What is HTTP headers?
How to view HTTP headers
HTTP request Structure
Post: send data to the server
Head: receive header information
HTTP Response Structure
This article systematically describes HTTP headers in a concise and easy-to-understand manner.What is HTTP headers?
HTTP is written by "Hypertext Transfer Protocol". This protocol is used throughout the world wide web. Most of the content you see in
Reference website:Http://www.neatstudio.com/show-377-1.shtmlPHP generally uses getallheaders to get the head, but in fact, some modes are not acquired (previously did not notice in fastcgi This function is not available, of course, I do not test now.
Whether it's doing the front end or the back end, you'll have to deal with HTTP headers, and it's definitely helpful for web development. This article allows me to study the side of the HTTP headers.
What is HTTP Headers
HTTP is written by
PHP getallheaders cannot get the custom headers.
A custom http header is added to the client request. The request is as follows:
Custom http Request Header
At first, the getallheaders parameter was obtained, but it was
Explanation of the request and Response Processing Process in the PHP Yii framework.
1. Request (Requests)Request:An application Request is represented by a yii \ web \ Request object, which provides Request parameters such as GET or POST parameters)
Read the process of request and response in the YII framework of PHP, YII framework
First, request (requests)Request:An application request is represented by a Yii\web\request object that provides information such as the request parameter (the
Before reading this article, you should have a concept that the source IP address cannot be forged in the case of normal TCP/IP communication. That is to say, in the TCP/IP protocol, the source IP address of the data packet can be forged, but this
PHPgetallheaders cannot obtain the custom headers. PHPgetallheaders cannot obtain the custom header (headers). phpgetallheaders adds the custom http header when requesting the client. the request is as follows: the custom http request header PHP
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