PHP Caching Technology Example

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$filename = ' cachefile.php '; $str = ' echo ' BB '; if (Is_file ($filename)) { $tmp = Readcache ($filename); } Else { Createcache ($filename, $STR); } Write Cache file function Createcache ($filename, $STR) { if ($str = = ") {return false;} $fp = fopen ($filename, "w+") or Die (' cache directory is not possible, please set/www.111cn.net/cache as writable permission! '); if (! fwrite ($FP, $STR)) { Echo ' cannot create cache file! '; Exit } Fclose ($FP); } Reading cached files function Readcache ($filename) { $str = file_get_contents ($filename); if ($str = = "") { echo "cache file read failed!"; Exit } return $str; }

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