Php code for generating short URLs

To generate a short URL in PHP, we can use a function to generate a unique address with a length of 5-6 characters. However, we also need to use static redirection directly. the specific instance code

To generate a short URL in PHP, we can use a function to generate a unique address with a length of 5-6 characters. However, we also need to use static redirection directly, the specific instance code is as follows:

2. Function code62 ($ x ){
3. $ Show = '';
4. While ($ x> 0 ){
5. $ S = $ x % 62;
6. If ($ s> 35 ){
7. $ S = chr ($ s + 61 );
8. } Elseif ($ s> 9 & $ s <= 35 ){
9. $ S = chr ($ s + 55 );
10. }
11. $ Show. = $ s;
12. $ X = floor ($ x/62 );
13. }
14. Return $ show;
15. }
16. Function compute url ($ url ){
17. $ Url = crc32 ($ url );
18. $ Result = sprintf ("% u", $ url );
19. Return code62 ($ result );
20. }

In this way, the generated job is like htt:/z.cn/abcfc, but to achieve access, we need to configure a pseudo static state in your apache or iis.

Http://z.cn/link.php? Url = http://www.phpfensi.com scale into http://z.cn/zHEYrvV

In this case, url rewriting is required. In this example, the code is as follows:

1. RewriteEngine On
2. RewriteBase/
3. RewriteRule ^/(. *) $ link. php? Url = $1 [L]