Php file cache function code

& Lt ;? Php & nbsp;/** & nbsp; * read or set Cache & nbsp; * @ access & nbsp; public & nbsp; * @ param & nbsp; & nbsp; string & nbsp; $ name & nbsp; cache name & nbsp; * @ param & nbsp; mixed & nbsp; & n

2. /**
3. * Read or set cache
4. *
5. * @ Access public
6. * @ Param string $ name cache name
7. * @ Param mixed $ value: cached content. null: deletes the cache.
8. * @ Param string $ path: cache path
9. * @ Return mixed
10. */
11. Function cache ($ name, $ value =, $ path =)
12. {
13. Return false; // In The debugging stage, no cache is performed.
14. $ Path = empty ($ path )? ROOT_PATH./Runtime/Data/: $ path;
15. $ File = $ path. $ name.. php;
17. If (empty ($ value )){
18. // The cache does not exist.
19. If (! Is_file ($ file )){
20. Return false;
21. }
23. // Delete cache
24. If (is_null ($ value )){
25. Unlink ($ file );
26. Return true;
27. }
29. $ Data = include $ file;
30. Return $ data;
31. }
33. $ Value = var_export ($ value, true );
34. $ Value =" ";
35. Return file_put_contents ($ file, $ value );
36. }
38. // Function call
39. Cache (name, array (a, B, c); // write the cache name as the cache name, and the following array is the cached content
40. Cache (name); // read the cache
41. Cache (name, null); // deletes the cache
42. ?>