PHP traversal of folders and file classes and processing class usage examples

This article mainly introduces PHP folder traversal and file class and processing class usage examples, including file and folder traversal and utf8 bom header clearing methods, which are very practical. For more information, see

This article mainly introduces PHP folder traversal and file class and processing class usage examples, including file and folder traversal and utf8 bom header clearing methods, which are very practical. For more information, see

This article describes the usage of PHP to traverse folders, file classes, and processing classes, which is of great practical value. Share it with you for your reference. The specific method is as follows:

FindFile. class. php class file is used to traverse directory files. The specific code is as follows:

<? Php/** traverse folders and file Classes * Date: 2013-03-21 * Author: fdipzone * Ver: 1.0 */class FindFile {public $ files = array (); // stores the file protected $ maxdepth; // search depth, 0 indicates no limit./* traverse files and folders * @ param String $ spath folder path * @ param int $ maxdepth search depth. By default, search all */public function process ($ spath, $ maxdepth = 0) {if (isset ($ maxdepth) & is_numeric ($ maxdepth) & $ maxdepth> 0) {$ this-> maxdepth = $ maxdepth ;} else {$ this-> maxdepth = 0;} $ this-> fi Les = array (); $ this-> traversing ($ spath ); // traverse}/* traverse files and folders * @ param String $ spath folder path * @ param int $ depth current folder depth */private function traversing ($ spath, $ depth = 1) {if ($ handle = opendir ($ spath) {while ($ file = readdir ($ handle ))! = False) {if ($ file! = '.' & $ File! = '.. ') {$ Curfile = $ spath. '/'. $ file; if (is_dir ($ curfile) {// dirif ($ this-> maxdepth = 0 | $ depth <$ this-> maxdepth) {// determine the depth $ this-> traversing ($ curfile, $ depth + 1) ;}} else {// file $ this-> handle ($ curfile );}}} closedir ($ handle) ;}}/** file Processing Method * @ param String $ file path */protected function handle ($ file) {array_push ($ this-> files, $ file) ;}}?>

UnsetBom. class. php is used to clear the bom of the utf8 + bom file, that is, the first three bytes 0xEF 0xBB 0xBF, inherit the FindFile class, the specific code is as follows:

<? Php/** traverse all files and clear utf8 + bom 0xEF 0xBB 0xBF * Date: 2013-03-21 * Author: fdipzone * Ver: 1.0 */class UnsetBom extends FindFile {private $ filetype = array (); // file type to be processed // initialize public function _ construct ($ filetype = array ()) {if ($ filetype) {$ this-> filetype = $ filetype ;}} /** override FindFile handle Method * @ param String $ file path */protected function handle ($ file) {if ($ this-> check_ext ($ file) & $ this-> check_utf8bom ($ fi Le) {// utf8 + bom $ this-> clear_utf8bom ($ file); // cleararray_push ($ this-> files, $ file ); // save log}/** check whether the file is utf8 + bom * @ param String $ file * @ return boolean */private function check_utf8bom ($ file) {$ content = file_get_contents ($ file); return ord (substr ($ content,) ===0xef & ord (substr ($ content )) === 0xBB & ord (substr ($ content, 2, 1) ===0xbf;}/** clear utf8 + bom * @ param String $ file path */private Function clear_utf8bom ($ file) {$ content = file_get_contents ($ file); file_put_contents ($ file, substr ($ content, 3), true ); // turn around three bytes}/** check the file type * @ param String $ file path * @ return boolean */private function check_ext ($ file) {$ file_ext = strtolower (array_pop (explode ('. ', basename ($ file); if (in_array ($ file_ext, $ this-> filetype) {return true;} else {return false ;}}?>

Demo file traversal example for removing the utf8 bom header:

<? Php require ('findfile. class. php '); require ('unsetbom. class. php '); $ folder = dirname (_ FILE _); $ obj = new UnsetBom (array ('php', 'css', 'js ')); // file type $ obj-> process ($ folder); print_r ($ obj-> files);?>

I hope this article will help you learn PHP programming.