- <?php
- define('DS', DIRECTORY_SEPARATOR);
- function breadth_first_files($from = '.') {
- $queue = array(rtrim($from, DS).DS);// normalize all paths
- $files = array();
- while($base = array_shift($queue )) {
- if (($handle = opendir($base))) {
- while (($child = readdir($handle)) !== false) {
- if( $child == '.' || $child == '..') {
- continue;
- }
- if (is_dir($base.$child)) {
- $combined_path = $base.$child.DS;
- array_push($queue, $combined_path);
- } else {
- $files[] = $base.$child;
- }
- }
- closedir($handle);
- } // else unable to open directory => NEXT CHILD
- }
- return $files; // end of tree, file not found
- }
- function profile($func, $trydir)
- {
- $mem1 = memory_get_usage();
- echo '<pre>----------------------- Test run for '.$func.'() ';
- flush();
- $time_start = microtime(true);
- $list = $func($trydir);
- //print_r($list);
- $time = microtime(true) - $time_start;
- echo 'Finished : '.count($list).' files</pre>';
- $mem2 = memory_get_peak_usage();
- printf('<pre>Max memory for '.$func.'() : %0.2f kbytes Running time for '.$func.'() : %0.f s</pre>',
- ($mem2-$mem1)/1024.0, $time);
- return $list;
- }
- profile('breadth_first_files', "D:\\www\\server");
- ?>
- //该片段来自于http://www.codesnippet.cn/detail/040220132072.html
来源: http://www.codesnippet.cn/detail/040220132072.html