How to scan directories within directories in a PHP loop - php

$dirs = scandir("../public_html/");
$subDirArr=array();
foreach ($dirs as $currentIndex => $currentDir) {
if (is_dir($currentDir))
if (!($currentDir[0] == "."))
echo "<a href='../public_html/$currentDir'>$currentDir</a><br/>";
}
So I've got this code that scans my public_html directory on my server and echos out all the subdirectories (but not the files) so that I have a list of clickable links to my subdirectories.
What I want to do is when one of the directories is clicked, have it show IT'S subdirectories (if any). I can't figure out how to logically do that though. I could write a loop within a loop within a loop, etc, but I want this code to work no matter how many directories I add.
How could I accomplish this?
The endgoal is to have a menu system for my hosting files/folders.

Something like this should do the trick. You can adjust function to whatever needed:
function getDirs($root)
{
foreach (scandir($root) as $dir) {
if ( ! in_array($dir, ['.', '..'])) {
$path = realpath($root . DIRECTORY_SEPARATOR . $dir);
if (is_dir($path)) {
echo $path . PHP_EOL;
getDirs($path);
}
}
}
}
getDirs("../public_html/");

Related

PHP Create Image Gallery From Directory And Subdirectories

I'm trying to make an image gallery that scans a main directory and creates a separate album for each subdirectory.
My structure is similar to this:
-Gallery
--Subdir 1
---Image 1
---Image 2
--Subdir 2
---Image 1
---Image 2
The idea is that each album is going to be made of a div with a class of web-gallery. Then there will be a header for the album title made from the subdirectories name. After that a list is generated of each image. This is going to be a one page gallery. If possible I would like to have a variable that sets how many albums are listed that way if I have 30 subdirectories my page doesn't get too crowded.
So far I've written this but it doesn't work. I'm not getting any errors or logs though it just doesn't work.
$dirs = glob('img/gallery_temp/*', GLOB_ONLYDIR);
foreach($dirs as $val) {
echo '<div class="web-gallery">';
echo "<h3><span>ยป</span> ".basename($val). "</h3>";
echo '<ul class="web-gallery-list">';
$files = glob($val.'*.{jpg,png,gif}', GLOB_BRACE);
foreach($files as $file) {
echo "<li><a href='".$file."'><img src='" . $file . "' alt='description'></a></li> \r\n";
}
echo "</ul>";
echo "</div>";
}
Simply add a / before *.{jpg,png,gif} like this:
$files = glob($val.'/*.{jpg,png,gif}', GLOB_BRACE);
This is because $val doesn't have a final / for the directory.
You might consider using "readdir" instead of glob. Glob is to find pathnames matching a pattern, see here: http://php.net/manual/en/function.glob.php and is known to be a bit problematic.
Readdir, if your directory is entirely images might be easier to use: http://php.net/manual/en/function.readdir.php
Couple this with is_dir() http://php.net/manual/en/function.is-dir.php to resolve your directories vs files. Here is a snippet
<?php
if ($handle = opendir('/galleries')) {
while (false !== ($entry = readdir($handle))) {
// this is a subdirectory
if (is_dir($entry)) {
}
// this is a file
else {
echo $entry;
}
}
closedir($handle);
}
?>
If you make it a recursive function you could actually have it traverse a number of subdirectories creating galleries within galleries.
I also found this fantastic little snippet that is very elegant on another stack question: Get Images In Directory and Subdirectory With Glob
$rdi = new RecursiveDirectoryIterator("uploads/prevImgs/");
$it = new RecursiveIteratorIterator($rdi);
foreach($it as $oneThing)
if (is_file($oneThing))
echo '<img src="'.$oneThing.'" /><br />';
Using SPL Library (PHP >= 5)
Better solution in your case
is to use SPL library (the most cross-platform)
$directory = new RecursiveDirectoryIterator("./img/gallery_temp", FilesystemIterator::SKIP_DOTS);
// Flatten the recursive iterator, folders come before their files
$it = new RecursiveIteratorIterator($directory, RecursiveIteratorIterator::SELF_FIRST);
foreach($it as $fileinfo)
{
if($fileinfo->isDir())
{
// prevPath used to separate each directory listing and closing the bracket UL list
$prevPath = $it->getSubPath().DIRECTORY_SEPARATOR.$fileinfo->getFilename();
echo sprintf
(
"<div class='web-gallery'>
<h3><span>></span> %s</h3>
<ul>".PHP_EOL,
$fileinfo->getFilename()
);
}
if($fileinfo->isFile())
{
echo sprintf("<li><a href=''><img src='%s/%s' alt='description'></a></li>".PHP_EOL, $it->getSubPath(), $fileinfo->getFilename());
if($prevPath != $it->getSubPath())
echo("</ul>");
}
}
Note:
For more informations : SPL Documentation
DIRECTORY_SEPARATOR is a cross-platform constant, will use the
correct directory separator of the OS where are executed the code
FilesystemIterator::SKIP_DOTS, avoid to fetch the '.' and '..' dir
link level.
you can limit the depth of scanning with $it->setMaxDepth(5);

PHP List Directories Recursively Issue

I'm trying to list all PHP files in a specified directory and for it to recursively check all sub-directories until it finds no more, there could be numerous levels.
The function I have below works fine with the exception that it only recurses down one level.
I've spent hours trying to see where I'm going wrong, I'm calling the scanFiles() when it finds a new directory but this only seems to work one level down and stop, any help greatly appreciated.
Updated:
function scanFiles($pParentDirectory)
{
$vFileArray = scandir($pParentDirectory);
$vDirectories = array();
foreach ($vFileArray as $vKey => $vValue)
{
if (!in_array($vValue, array('.', '..')) && (strpos($vValue, '.php') || is_dir($vValue)))
{
if (!is_dir($vValue))
$vDirectories[] = $vValue;
else
{
$vDirectory = $vValue;
$vSubFiles = scanFiles($vDirectory);
foreach ($vSubFiles as $vKey => $vValue)
$vDirectories[] = $vDirectory.DIRECTORY_SEPARATOR.$vValue;
}
}
}
return $vDirectories;
}
You can do this easily like this:
// helper function
function getFiles(&$files, $dir) {
$items = glob($dir . "/*");
foreach ($items as $item) {
if (is_dir($item)) {
getFiles($files, $item);
} else {
if (end(explode('.', $item)) == 'php') {
$files[] = basename($item);
}
}
}
}
// usage
$files = array();
getFiles($files, "myDir");
// debug
var_dump($files);
myDir looks like this: has php files in all dirs
Output:
P.S. if you want the function to return the full path to the found .php files, remove the basename() from this line:
$files[] = basename($item);
This will then produce result like this:
hope this helps.
This is because $vDirectory is just a folder name, so scanDir looks in the current folder for it, not the sub folder.
What you want to do is to pass in the path to the folder, not just the name. This should be as simple as changing your recursive call to scanFiles($pParentDirectory . DIRECTORY_SEPARATOR . $vDirectory)
Your main problem is functions like scanDir or isDir need the full file path to work.
If you pass the full file path to them, it should work correctly.

php write subdirectories' contents into separate text files

I am trying to list files in subdirectories and write these lists into separate text files.
I managed to get the directory and subdirectory listings and even to write all the files into a text file.
I just don't seem to manage to burst out of loops I am creating. I either end up with a single text file or the second+ files include all preceeding subdirectories content as well.
What I need to achieve is:
dir A/AA/a1.txt,a2.txt >> AA.log
dir A/BB/b1.txt,b2.txt >> BB.log
etc.
Hope this makes sense.
I've found the recursiveDirectoryIterator method as described in PHP SPL RecursiveDirectoryIterator RecursiveIteratorIterator retrieving the full tree being great help. I then use a for and a foreach loop to iterate through the directories, to write the text files, but I cannot break them into multiple files.
Most likely you are not filtering out the directories . and .. .
$maindir=opendir('A');
if (!$maindir) die('Cant open directory A');
while (true) {
$dir=readdir($maindir);
if (!$dir) break;
if ($dir=='.') continue;
if ($dir=='..') continue;
if (!is_dir("A/$dir")) continue;
$subdir=opendir("A/$dir");
if (!$subdir) continue;
$fd=fopen("$dir.log",'wb');
if (!$fd) continue;
while (true) {
$file=readdir($subdir);
if (!$file) break;
if (!is_file($file)) continue;
fwrite($fd,file_get_contents("A/$dir/$file");
}
fclose($fd);
}
I thought I'd demonstrate a different way, as this seems like a nice place to use glob.
// Where to start recursing, no trailing slash
$start_folder = './test';
// Where to output files
$output_folder = $start_folder;
chdir($start_folder);
function glob_each_dir ($start_folder, $callback) {
$search_pattern = $start_folder . DIRECTORY_SEPARATOR . '*';
// Get just the folders in an array
$folders = glob($search_pattern, GLOB_ONLYDIR);
// Get just the files: there isn't an ONLYFILES option yet so just diff the
// entire folder contents against the previous array of folders
$files = array_diff(glob($search_pattern), $folders);
// Apply the callback function to the array of files
$callback($start_folder, $files);
if (!empty($folders)) {
// Call this function for every folder found
foreach ($folders as $folder) {
glob_each_dir($folder, $callback);
}
}
}
glob_each_dir('.', function ($folder_name, Array $filelist) {
// Generate a filename from the folder, changing / or \ into _
$output_filename = $_GLOBALS['output_folder']
. trim(strtr(str_replace(__DIR__, '', realpath($folder_name)), DIRECTORY_SEPARATOR, '_'), '_')
. '.txt';
file_put_contents($output_filename, implode(PHP_EOL, $filelist));
});

PHP - Deleting folder/files only if there are no more in there

$value can = a folder structure to the language file. Example: languages/english.php
$value can also = the files name. Example: english.php
So I need to get the current folder that $value is in and delete the folder ONLY if there are no other files/folders within that directory (after deleting the actual file as I am doing already, ofcourse).
foreach($module['languages'] as $lang => $langFile)
{
foreach ($langFile as $type => $value)
{
#unlink($module_path . '/' . $value);
// Now I need to delete the folder ONLY if there are no other directories inside the folder where it is currently at.
// And ONLY if there are NO OTHER files within that folder also.
}
}
How can I do this?? And wondering if this can be done without using a while loop, since a while loop within a foreach loop could take some time, and need this to be as quick as possible.
And just FYI, the $module_path should never be deleted. So if $value = english.php, it should never delete the $module_path. Ofcourse, there will always be another file in there, so checking for this is not necessary, but won't hurt either way.
Thanks guys :)
EDIT
Ok, now I'm using this code here and it is NOT working, it is not removing the folders or the files, and I don't get any errors either... so not sure what the problem is here:
foreach($module['languages'] as $lang => $langFile)
{
foreach ($langFile as $type => $value)
{
if (#unlink($module_path . '/' . $value))
#rmdir(dirname($module_path . '/' . $value));
}
}
NEVERMIND, this works a CHARM!!! Cheers Everyone!!
The easyest way is try to use rmdir. This don't delete folder if it is not empty
rmdir($module_path);
also you can check is folder empty by
if(count(glob($module_path.'*'))<3)//delete
2 for . and ..
UPD: as I reviewed maybe you should replace $module_path by dirname($module_path.'.'.$value);
Since the directory you care about might be part of the $value, you need to use dirname to figure out what the parent directory is, you can't just assume that it's $module_path.
$file_path = $module_path . '/' . $value;
if (#unlink($file_path)) {
#rmdir(dirname($file_path));
}
if (is_file($value)) {
unlink($value);
} else if (is_dir($value)) {
if (count(scandir($value)) == 2) }
unlink($value)
}
}
http://php.net/manual/en/function.is-dir.php
http://www.php.net/manual/en/function.scandir.php
The code below will take a path, check if it is a file (i.e. not a directory). If it is a file, it will extract the directory name, then delete the file, then iterate over the dir and count the files in it, if the files are zero it'll delete the dir.
Code is as an example and should work, however privileges and environment setup may result in it not working.
<?php
if(!is_dir ( string $filename )){ //if it is a file
$fileDir = dirname ( $filename );
if ($handle = opendir($fileDir)) {
echo "Directory handle: $handle\n";
echo "Files:\n";
$numFiles=0;
//delete the file
unlink($myFile);
//Loop the dir and count the file in it
while (false !== ($file = readdir($handle))) {
$numFiles = $numFiles + 1;
}
if($numFiles == 0) {
//delete the dir
rmdir($fileDir);
}
closedir($handle);
}
}
?>

Get folders and files recursively from a folder in alphabetical order in PHP?

I need to get all the folders and files from a folder recursively in alphabetical order (folders first, files after)
Is there an implemented PHP function which caters for this?
I have this function:
function dir_tree($dir) {
$path = '';
$stack[] = $dir;
while ($stack) {
$thisdir = array_pop($stack);
if ($dircont = scandir($thisdir)) {
$i=0;
while (isset($dircont[$i])) {
if ($dircont[$i] !== '.' && $dircont[$i] !== '..' && $dircont[$i] !== '.svn') {
$current_file = "{$thisdir}/{$dircont[$i]}";
if (is_file($current_file)) {
$path[] = "{$thisdir}/{$dircont[$i]}";
} elseif (is_dir($current_file)) {
$path[] = "{$thisdir}/{$dircont[$i]}";
$stack[] = $current_file;
}
}
$i++;
}
}
}
return $path;
}
I have sorted the array and printed it like so:
$filesArray = dir_tree("myDir");
natsort($filesArray);
foreach ($filesArray as $file) {
echo "$file<br/>";
}
What I need is to know when a new sub directory is found, so I can add some spaces to print it in a directory like structure instead of just a list.
Any help?
Many thanks
Look at the RecursiveDirectoryIterator.
$directory_iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir));
foreach($directory_iterator as $filename => $path_object)
{
echo $filename;
}
I'm not sure though if it returns the files in alphabetical order.
Edit:
As you say it does not, I think the only way is to sort them yourself.
I would loop through each directory and put directories and files in a seperate arrays, and then sort them, and then recurse in the directories.
I found a link which helped me a lot in what I was trying to achieve:
http://snippets.dzone.com/posts/show/1917
This might help someone else, it creates a list with folders first, files after. When you click on a subfolder, it submits and another page with the folders and files in the partent folder is generated.

Categories