PHP traverses the file implementation code

 
function Files($path) 
{ 
foreach(scandir($path) as $line) 
{ 
if($line=='.'||$line=='..') continue; 
if(is_dir($path.'/'.$line)) Files($path.'/'.$line); 
else echo '<li>'.$path.'/'.$line.'</li>'; 
} 
} 

PHP traverses files and folders
adds the given folder C:\\Windows\\AppPatch
1. First, get everything under this folder, namely files, folders, and put
in an array $fileArr = array(
'files' = > array(), // file to put an array
'dirs' = > array(), // folder to put an array
)
2. If there are subfolders, walk through the subfolders, get the folders and files, put them into the same array, and so on

 
<?php 
$dir = 'F:\\game'; 
function read_dir_all($dir) { 
$ret = array('dirs'=>array(), 'files'=>array()); 
if ($handle = opendir($dir)) { 
while (false !== ($file = readdir($handle))) { 
if($file != '.' && $file !== '..') { 
$cur_path = $dir . DIRECTORY_SEPARATOR . $file; 
if(is_dir($cur_path)) { 
$ret['dirs'][$cur_path] = read_dir_all($cur_path); 
} else { 
$ret['files'][] = $cur_path; 
} 
} 
} 
closedir($handle); 
} 
return $ret; 
} 
$p = read_dir_all($dir); 
echo '<pre>'; 
var_dump($p); 
echo '</pre>'; 
?> 

php traverses all the directories and files in a single folder In interviews, we often come across this question: php traverses all the files and subfolders under a folder.
There are several solutions to this problem. But the general idea is the same. Recursion.

 
$path = './filepath'; 
function getfiles($path) 
{ 
if(!is_dir($path)) return; 
$handle = opendir($path); 
while( false !== ($file = readdir($handle))) 
{ 
if($file != '.' && $file!='..') 
{ 
$path2= $path.'/'.$file; 
if(is_dir($path2)) 
{ 
echo ' '; 
echo $file; 
getfiles($path2); 
}else 
{ 
echo ' '; 
echo $file; 
} 
} 
} 
} 
print_r( getfiles($path)); 
echo '<HR>'; 
function getdir($path) 
{ 
if(!is_dir($path)) return; 
$handle = dir($path); 
while($file=$handle->read()) 
{ 
if($file!='.' && $file!='..') 
{ 
$path2 = $path.'/'.$file; 
if(is_dir($path2)) 
{ 
echo $file."\t"; 
getdir($path2); 
}else 
{ 
echo $file.' '; 
} 
} 
} 
} 
getdir($path); 
echo '<HR>'; 
function get_dir_scandir($path){ 
$tree = array(); 
foreach(scandir($path) as $single){ 
if($single!='.' && $single!='..') 
{ 
$path2 = $path.'/'.$single; 
if(is_dir($path2)) 
{ 
echo $single."\r\n"; 
get_dir_scandir($path2); 
}else 
{ 
echo $single."\r\n"; 
} 
} 
} 
} 
get_dir_scandir($path); 
echo ' 
<HR>'; 
function get_dir_glob(){ 
$tree = array(); 
foreach(glob('./curl/*') as $single){ 
echo $single."\r\n"; 
} 
} 
get_dir_glob(); 
echo ' 
<HR>'; 
function myscandir($path) 
{ 
if(!is_dir($path)) return; 
foreach(scandir($path) as $file) 
{ 
if($file!='.' && $file!='..') 
{ 
$path2= $path.'/'.$file; 
if(is_dir($path2)) 
{ 
echo $file; 
myscandir($path2); 
}else 
{ 
echo $file.' '; 
} 
} 
} 
} 
myscandir($path); 
echo '<HR>'; 
function myglob($path) 
{ 
$path_pattern = $path.'/*'; 
foreach(glob($path_pattern) as $file) 
{ 
if(is_dir($file)) 
{ 
echo $file; 
myscandir($file); 
}else 
{ 
echo $file.' '; 
} 
} 
} 
myglob($path);