Php implements 301 redirection jump code

In php, the 301 redirection implementation method is very simple. we only need to simply use the header to send the 301 status code and then use the header to jump. The effect is the same as that of apache, iis, and nginx.

In php, the 301 redirection implementation method is very simple. we only need to simply use the header to send the 301 status code and then use the header to jump. The effect is the same as that of apache, iis, and nginx.

I. This method is recommended because it transfers all the original URLs of www.phpfensi.com to the new address of phpfensi.com. the code is as follows:

2. $ The_host = $ _ SERVER ['http _ host'];
3. $ Request_uri = isset ($ _ SERVER ['request _ URI '])? $ _ SERVER ['request _ URI ']: '';
4. If ($ the_host = 'www .phpfensi.com ')
5. {
6. Header ('http/1.1 301 Moved Permanently ');
7. Header ('Location: http://phpfensi.com '. $ request_uri );//
8. }
9. ?>

2. the single-page multi-site Php301 redirection code, www.phpfensi.com and phpfensi.com are 301 to index. php, and www.phpfensi.com is 301 to phpfensi.com. Otherwise, the error page is displayed. the code is as follows:

1. If ($ HTTP_HOST = "www.phpfensi.com") or ($ HTTP_HOST = "phpfensi.com "))
2. {
3. Header ("HTTP/1.1 301 Moved Permanently ");
4. Header ("Location:/index. php ");
5. }
6. Elseif ($ HTTP_HOST = "www.phpfensi.com ")
7. {
8. Header ("HTTP/1.1 301 Moved Permanently ");
9. Header ("Location: http://phpfensi.com ");
10. }
11. Else
12. {
13. Header ("Location:/404.htm ");
14. }

The code is as follows:

1. // Define the encoding
2. Header ('content-Type: text/html; charset = utf-8 ');
3. // Atom
4. Header ('content-type: application/atom + XML ');
5. // CSS
6. Header ('content-type: text/css ');
7. // Javascript
8. Header ('content-type: text/javascript ');
9. // JPEG Image
10. Header ('content-type: image/jpeg ');
11. // JSON
12. Header ('content-type: application/json ');
13. // PDF
14. Header ('content-type: application/pdf ');
15. // RSS
16. Header ('content-Type: application/rss + xml; charset = ISO-8859-1 ');
17. // Text (Plain)
18. Header ('content-type: text/plain ');
19. // XML
20. Header ('content-type: text/XML ');
21. // OK
22. Header ('http/1.1 200 OK ');
23. // Set a 404 header:
24. Header ('http/1.1 404 Not Found ');
25. // Set the address to be permanently redirected
26. Header ('http/1.1 301 Moved Permanently ');
27. // Go to a new address
28. Header ('Location: http://www.example.org /');
29. // File delay redirection:
30. Header ('refresh: 10; url = http://www.example.org /');
31. Print 'You will be redirected in 10 seconds ';
32. // Of course, you can also use html syntax to implement
33. //  
34. // Override X-Powered-By: PHP:
35. Header ('x-Powered-By: PHP/4.4.0 ');
36. Header ('x-Powered-By: Brain/0.6b ');
37. // Document language
38. Header ('content-language: en ');
39. // Tell the browser the last modification time
40. $ Time = time ()-60; // or filemtime ($ fn), etc
41. Header ('last-Modified: '. gmdate ('d, d m y h: I: S', $ time). 'gmt ');
42. // Tell the browser that the document content has not changed
43. Header ('http/1.1 304 Not modified ');
44. // Set the content length
45. Header ('content-Length: 1234 ');
46. // Set it to a download type
47. Header ('content-Type: application/octet-stream ');
48. Header ('content-Disposition: attachment; filename = "example.zip "');
49. Header ('content-Transfer-Encoding: binary ');
50. // Load the file to send:
51. Readfile('example.zip ');
52. // Disable caching for the current document
53. Header ('cache-Control: no-Cache, no-store, max-age = 0, must-revalidate ');
54. Header ('expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
55. Header ('pragma: no-cache ');
56. // Set the content type:
57. Header ('content-Type: text/html; charset = ISO-8859-1 ');
58. Header ('content-Type: text/html; charset = utf-8 ');
59. Header ('content-Type: text/plain '); // plain text format
60. Header ('content-Type: image/jpeg '); // JPG ***
61. Header ('content-Type: application/zip'); // zip file
62. Header ('content-Type: application/pdf '); // pdf file
63. Header ('content-Type: audio/mpeg '); // audio File
64. Header ('content-Type: application/x-shockw ** e-Flash'); // flash animation
65. // Display the login dialog box
66. Header ('http/1.1 401 unauthorized ');
67. Header ('www-Authenticate: Basic realm = "Top Secret "');
68. Print 'text that will be displayed if the user hits cancel or ';
69. Print 'enters wrong login data ';

Pay attention to the following points to help solve some problems that beginners often encounter.

1. there must be no space between location and:. Otherwise, an error will occur.

2. there cannot be any output before using the header.

3. the PHP code after the header is executed.