PHP recursively traverse file tree code_PHP tutorial

When it comes to recursively scanning folder trees, the Glob function performs better, to be precise. > The Scandir function will inexplicably scan the file at ../ twice, that is to say, if Xiaoxie has two files.

> ../b.php tutorial and ../a.php, the result will appear twice on the scan report, which is very strange.

The code is as follows

代码如下

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//Update at 2010.07.25 - 以下代码作废 $path = '..'; function get_filetree_scandir($path){ $tree = array(); foreach(scandir($path) as $single){ if(is_dir('../'.$single)){ $tree = array_merge($tree,get_filetree($single)); } else{ $tree[] = '../'.$single; } } return $tree; } print_r(get_filetree_scandir($path)); //Update at 2010.07.25 - 以下为新代码 $path = './'; function get_filetree_scandir($path){ $result = array(); $temp = array(); if (!is_dir($path)||!is_readable($path)) return null; //检测目录有效性 $allfiles = scandir($path); //获取目录下所有文件与文件夹 foreach ($allfiles as $filename) { //遍历一遍目录下的文件与文件夹 if (in_array($filename,array('.','..'))) continue; //无视 . 与 .. $fullname = $path.'/'.$filename; //得到完整文件路径 if (is_dir($fullname)) { //是目录的话继续递归 $result[$filename] = get_filetree_scandir($fullname); //递归开始 } else { $temp[] = $filename; //如果是文件，就存入数组 } } foreach ($temp as $tmp) { //把临时数组的内容存入保存结果的数组 $result[] = $tmp; //这样可以让文件夹排前面，文件在后面 } return $result; } print_r(get_filetree_scandir($path));

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//Update at 2010.07.25 - The following code is invalid $path = '..';

function get_filetree_scandir($path){

$tree = array(); foreach(scandir($path) as $single){ if(is_dir('../'.$single)){ $tree = array_merge($tree,get_filetree($single)); } else{ $tree[] = '../'.$single; } } return $tree; } print_r(get_filetree_scandir($path));

//Update at 2010.07.25 - The following is the new code $path = './'; function get_filetree_scandir($path){

$result = array();

$temp = array(); if (!is_dir($path)||!is_readable($path)) return null; //Check directory validity $allfiles = scandir($path); //Get all files and folders in the directory foreach ($allfiles as $filename) { //Traverse the files and folders in the directory if (in_array($filename,array('.','..'))) continue; //Ignore . and .. $fullname = $path.'/'.$filename; //Get the full file path if (is_dir($fullname)) { //If it is a directory, continue the recursion $result[$filename] = get_filetree_scandir($fullname); //Recursion starts } else { $temp[] = $filename; //If it is a file, store it in the array } } foreach ($temp as $tmp) { //Save the contents of the temporary array into the array that holds the result $result[] = $tmp; //This allows the folder to be arranged at the front and the file at the back } return $result; } print_r(get_filetree_scandir($path)); http://www.bkjia.com/PHPjc/631703.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631703.htmlTechArticleWhen it comes to recursively scanning the folder tree, the Glob function performs better, to be precise. > The Scandir function will inexplicably scan the file at ../ twice, that is to say, if the small...