... purging, 38 9 39 0 Cache_Lite_Function class, 39 1 caching, 36 3 39 3 client-side, 36 7 37 1 examining HTTP headers in web browsers, 37 1 37 2 file downloads with Internet Explorer, 37 2 37 3 function ... 269 36 2 changing passwords, 33 0 33 8 forgotten passwords, 31 8 33 0 HTTP authentication, 271–277 permission systems, 33 9 35 3 private sections of web sites, 2 83 297 registration systems, 297 31 8 ... function calls, 39 0 39 2 output buffering for server-side cach-ing, 37 3 37 7 parts of pages, 37 7 38 1 PEAR::Cache_Lite configuration op-tions, 38 5 38 9 purging Cache_Lite cache, 38 9 39 0 using PEAR::Cache_Lite...