PHP text database search method

PHP text database search method, read the PHP text database search method, searchstr = ("> <LINKhref =" http://www.php100.com//statics/style/headfloor_950_081205.css "type = text/cssrel = styleshee PHP text database search method searchstr = ("/". preg_quote ($ searchstr ). "/"); // $ searchstr is the search keyword $ records = file ($ file ); // Obtain the number of all records // $ file is the data file to be searched for $ search_reocrds = preg_grep ($ searchstr, $ records ); // start searching for records // $ search_reocrds indicates the number of records found unset ($ records); if ($ search_records) {// start displaying records, write down your own processing program ********************* while (list ($ key, $ val) = each ($ search_records) {echo "$ val
";} //************************************** **************}