Header () 301 redirection implementation code _ PHP Tutorial

Header () 301 redirection implementation code. Let's take a look at an example, header (location: www.111cn.cn); the above is a simple jump. how do we do this for permanent redirection. As follows. Syntax header (string, replace, http_respo first look at an instance,

Header ('Location: http://www.111cn.cn /');

The above is a simple jump. what should we do for a permanent turn. As follows.

Syntax
Header (string, replace, http_response_code) parameter description
String is required. Specifies the header string to be sent.
Replace is optional. Indicates whether the header replaces the previous header or adds the second header.

The default value is true (replace ). False (multiple headers of the same type are allowed ).

Http_response_code is optional. Forces the http response code to the specified value. (Php Tutorial 4 and later are available)

In other cases, http_response_code is the 301 code to be written, as shown below.

$ Url = "http://www.zhutiai.com ";
Header ("http/1.1 301 moved permanently ");
Header ("location: $ url ");
Exit ();

Note: After php 4.4, this function prevents multiple headers from being sent at a time. This is a protection against header injection attacks.

Cursor, header (location: http://www.111cn.cn/); above is a simple jump, we want to do permanent turn how to do it. As follows. Syntax header (string, replace, http_respo...