how to use modify headers

From: http://zhanglulu33.blog.163.com/blog/static/112799542010112810497281/ If you got this message: "Warning: cannot modify header information-headers already sent ...."If you see this warning when executing the PHP program: "Warning: cannot modify

Turn from: http://blog.csdn.net/jsyzzcx/archive/2008/05/25/2480076.aspx Reference: http://hi.baidu.com/mikeking20031/blog/item/6a58b35113edc81e377abe5b.html This article discusses how to completely eliminate the Warning:cannot add header

Document directory What is HTTP headers? Example How to view HTTP headers HTTP request Structure Post: send data to the server Head: receive header information HTTP Response Structure Host User-Agent Accept-Language Accept-Encoding

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

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

Copy CodeThe code is as follows: Setcookie ("username", "bu", Time () +3600); echo "AAAAA"; ?> Run with warning Warning : Cannot modify header information-headers already sent by Here's what others suggest Method One:There are some restrictions on

Cannot modify header information-headers already sent by (output started...) is always reported ...).... The following are some other reasons and solutions for the Cannot modify header information-headers already sent by error. Method 1:There are

Ob_start ();Setcookie ("username", "Test", Time () +3600);echo "The username is:". $HTTP _cookie_vars["username"]. " \ n ";echo "The username is:". $_cookie["username"]. " \ n ";Print_r ($_cookie);?>Prompted Warning:cannot Modify header

Copy Code code as follows: Setcookie ("username", "bu", Time () +3600); echo "AAAAA"; ?> Run with a warning Warning: Cannot modify header information-headers already sent by Here's what people suggest Method One:There are some

Copy codeThe Code is as follows: Setcookie ("username", "bu", time () + 3600 ); Echo "aaaaa "; ?> Run Warning: Cannot modify header information-headers already sent Below are suggestions from others Method 1:There are some restrictions on the use of