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This article mainly introduces the relevant knowledge of "what is the concept of php redirection". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "what is the concept of php redirection" can help you solve the problem.

In php, redirection refers to the redirection of network requests to other locations through various methods; redirection can be divided into internal and external, the difference is that when external redirection occurs, the URL in the browser address bar will change.

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Php redirection

Redirection (Redirect) is to redirect various network requests to another location through various methods. Divided into internal and external, the difference is that when the external redirection, the browser address bar in the URL will change.

Page redirection must have page jump, page jump does not necessarily have page redirection, that is to say, page redirection is really included in page jump, page redirection is a sufficient and necessary condition for page jump.

In the construction of our website, we often encounter situations that require web page redirection:

1. Site adjustment (e. G. changing the directory structure of web pages)

two。 The page was moved to a new address

3. Change the web page extension (for example, the application needs to change .php to .html or .shtml).

In this case, if there is no redirect, the old address in the user's favorites or search engine database can only give the visiting customer a 404 page error message, and the access traffic will be lost in vain; in addition, some websites that have registered multiple domain names also need to redirect users visiting these domain names to the main site automatically.

Summarize several methods of page jump under PHP

1. Meta tag implementation

Just add the following sentence to the head and jump to the target page after staying on the current page for 0 seconds.

Echo''

2. JavaScript implementation

Echo'_ window.location.href = 'https://www.baidu.com';';

3. Implementation of PHP page redirection

Header ('Location: https://www.baidu.com');

Using PHP page redirection jumps is a little different from the above two methods in that its http reply status code is specified as 3xx. The specific differences relate to the request process of HTTP, so I won't go into details here.

This is the end of the introduction to "what is the concept of php redirection". Thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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