note 108190 added to function.filetype

Something you may eventually want to do is to know the type of file simply by the suffix of the filename. Functions like finfo_file and mime_ content_ type come close, but they don't actually list the filename suffix (like "txt" for "readme.txt"), and this filetype function seems to list "directory" or "file" only. Knowing the filename suffix can be very useful, especially when managing a filesystem that has copies. It's better to name the copy of a file as "readme(copy-1).txt" rather than "readme.txt(copy-1)", since the latter option probably isn't going to cooperate so well with your text editor/reader. Here's a little code below that returns the suffix of a filename in a string. It returns both the prefix and the suffix of the filename : <?php // Example Filename: "Homepage.php" // ------------------------------------ $file_name = "Homepage.php"; // Filename Data // ------------------------------------ $length_of_filename = strlen($file_name); $last_char = substr($file_name, $length_of_filename - 1, 1); // Parse Filename Backwards // ------------------------------------ for($i_parse_name = 0; $i_parse_name < $length_of_filename; $i_parse_name++) { // Gather Data and Detect // ------------------------------------ $last_char = substr($file_name, $length_of_filename - $i_parse_name + 2, 1); if($last_char == ".") { $filename_suffix = substr($file_name, $length_of_filename - $i_parse_name + 2, $i_parse_name); $filename_prefix = substr($file_name, 0, $length_of_filename - strlen($filename_suffix)); $i_parse_name = $length_of_filename; } } // Print Results // ------------------------------------ print("Filetype Results -- $filename_prefix ||| $filename_suffix"); // Example Results: // ------------------------------------ // Filetype Results -- Homepage ||| .php ?> Other examples: "Best.Page.in.the.Universe.xml" Filetype Results -- Best.Page.in.the.Universe ||| .xml "Best.Page.in.the.Universe.xml5789" Filetype Results -- Best.Page.in.the.Universe ||| .xml5789 "Home.awesome.page.php" Filetype Results -- Home.awesome.page ||| .php ---- Server IP: 69.147.83.197 Probable Submitter: 68.9.137.178 ---- Manual Page -- http://www.php.net/manual/en/function.filetype.php Edit -- https://master.php.net/note/edit/108190 Del: integrated -- https://master.php.net/note/delete/108190/integrated Del: useless -- https://master.php.net/note/delete/108190/useless Del: bad code -- https://master.php.net/note/delete/108190/bad+code Del: spam -- https://master.php.net/note/delete/108190/spam Del: non-english -- https://master.php.net/note/delete/108190/non-english Del: in docs -- https://master.php.net/note/delete/108190/in+docs Del: other reasons-- https://master.php.net/note/delete/108190 Reject -- https://master.php.net/note/reject/108190 Search -- https://master.php.net/manage/user-notes.php