If you would like to get, say, all the *.php files in your project folder, recursively, you could use the following:
<?php
$Directory = new RecursiveDirectoryIterator('path/to/project/');
$Iterator = new RecursiveIteratorIterator($Directory);
$Regex = new RegexIterator($Iterator, '/^.+\.php$/i', RecursiveRegexIterator::GET_MATCH);
?>
$Regex will contain a single index array for each PHP file.
The RecursiveDirectoryIterator class
(PHP 5)
Introduction
The RecursiveDirectoryIterator provides an interface for iterating recursively over filesystem directories.
Class synopsis
RecursiveDirectoryIterator
extends
FilesystemIterator
implements
SeekableIterator
,
RecursiveIterator
{
/* Methods */
public __construct
( string
$path
[, int $flags = FilesystemIterator::KEY_AS_PATHNAME | FilesystemIterator::CURRENT_AS_FILEINFO
] )/* Inherits */
public FilesystemIterator::__construct
( string
}$path
[, int $flags = FilesystemIterator::KEY_AS_PATHNAME | FilesystemIterator::CURRENT_AS_FILEINFO | FilesystemIterator::SKIP_DOTS
] )Changelog
| Version | Description |
|---|---|
| 5.3.0 | The FilesystemIterator was introduced as the parent class. Previously, the parent was the DirectoryIterator. |
| 5.3.0 | Implements SeekableIterator. |
| 5.2.11, 5.3.1 | Added RecursiveDirectoryIterator::FOLLOW_SYMLINKS |
Table of Contents
- RecursiveDirectoryIterator::__construct — Constructs a RecursiveDirectoryIterator
- RecursiveDirectoryIterator::getChildren — Returns an iterator for the current entry if it is a directory
- RecursiveDirectoryIterator::getSubPath — Get sub path
- RecursiveDirectoryIterator::getSubPathname — Get sub path and name
- RecursiveDirectoryIterator::hasChildren — Returns whether current entry is a directory and not '.' or '..'
- RecursiveDirectoryIterator::key — Return path and filename of current dir entry
- RecursiveDirectoryIterator::next — Move to next entry
- RecursiveDirectoryIterator::rewind — Rewind dir back to the start
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User Contributed Notes 10 notes
Thriault ¶
4 years ago
alvaro at demogracia dot com ¶
6 years ago
Usage example:
<?php
$path = realpath('/etc');
$objects = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path), RecursiveIteratorIterator::SELF_FIRST);
foreach($objects as $name => $object){
echo "$name\n";
}
?>
This prints a list of all files and directories under $path (including $path ifself). If you want to omit directories, remove the RecursiveIteratorIterator::SELF_FIRST part.
antennen ¶
3 years ago
If you use RecursiveDirectoryIterator with RecursiveIteratorIterator and run into UnexpectedValueException you may use this little hack to ignore those directories, such as lost+found on linux.
<?php
class IgnorantRecursiveDirectoryIterator extends RecursiveDirectoryIterator {
function getChildren() {
try {
return new IgnorantRecursiveDirectoryIterator($this->getPathname());
} catch(UnexpectedValueException $e) {
return new RecursiveArrayIterator(array());
}
}
}
?>
Use just like the normal RecursiveDirectoryIterator.
sun ¶
10 months ago
Since I continue to run into implementations across the net that are unintentionally running into this trap — beware:
RecursiveDirectoryIterator recurses without limitations into the full filesystem tree.
Do NOT do the following, unless you intentionally want to infinitely recurse without limitations:
<?php
$directory = new \RecursiveDirectoryIterator($path);
$iterator = new \RecursiveIteratorIterator($directory);
$files = array();
foreach ($iterator as $info) {
if (...custom conditions...) {
$files[] = $info->getPathname();
}
}
?>
1. RecursiveDirectoryIterator is just a RecursiveIterator that recurses into its children, until no more children are found.
2. The instantiation of RecursiveIteratorIterator causes RecursiveDirectoryIterator to *immediately* recurse infinitely into the entire filesystem tree (starting from the given base path).
3. Unnecessary filesystem recursion is slow. In 90% of all cases, this is not what you want.
Remember this simple rule of thumb:
→ A RecursiveDirectoryIterator must be FILTERED or you have a solid reason for why it shouldn't.
On PHP <5.4, implement the following - your custom conditions move into a proper filter:
<?php
$directory = new \RecursiveDirectoryIterator($path, \FilesystemIterator::FOLLOW_SYMLINKS);
$filter = new MyRecursiveFilterIterator($directory);
$iterator = new \RecursiveIteratorIterator($filter);
$files = array();
foreach ($iterator as $info) {
$files[] = $info->getPathname();
}
class MyRecursiveFilterIterator extends \RecursiveFilterIterator {
public function accept() {
$filename = $this->current()->getFilename();
// Skip hidden files and directories.
if ($name[0] === '.') {
return FALSE;
}
if ($this->isDir()) {
// Only recurse into intended subdirectories.
return $name === 'wanted_dirname';
}
else {
// Only consume files of interest.
return strpos($name, 'wanted_filename') === 0;
}
}
}
?>
On PHP 5.4+, PHP core addressed the slightly cumbersome issue of having to create an entirely new class and you can leverage the new RecursiveCallbackFilterIterator instead:
<?php
$directory = new \RecursiveDirectoryIterator($path, \FilesystemIterator::FOLLOW_SYMLINKS);
$filter = new \RecursiveCallbackFilterIterator($directory, function ($current, $key, $iterator) {
// Skip hidden files and directories.
if ($current->getFilename()[0] === '.') {
return FALSE;
}
if ($current->isDir()) {
// Only recurse into intended subdirectories.
return $current->getFilename() === 'wanted_dirname';
}
else {
// Only consume files of interest.
return strpos($current->getFilename(), 'wanted_filename') === 0;
}
});
$iterator = new \RecursiveIteratorIterator($filter);
$files = array();
foreach ($iterator as $info) {
$files[] = $info->getPathname();
}
?>
Have fun!
catinahat at cool dot fr dot nf ¶
1 year ago
If you need to convert a nested directory tree into a multidimensional array, use this code:
<?php
$ritit = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($startpath), RecursiveIteratorIterator::CHILD_FIRST);
$r = array();
foreach ($ritit as $splFileInfo) {
$path = $splFileInfo->isDir()
? array($splFileInfo->getFilename() => array())
: array($splFileInfo->getFilename());
for ($depth = $ritit->getDepth() - 1; $depth >= 0; $depth--) {
$path = array($ritit->getSubIterator($depth)->current()->getFilename() => $path);
}
$r = array_merge_recursive($r, $path);
}
print_r($r);
?>
megar ¶
5 years ago
Usage example:
To see all the files, and count the space usage:
<?php
$ite=new RecursiveDirectoryIterator("/path/");
$bytestotal=0;
$nbfiles=0;
foreach (new RecursiveIteratorIterator($ite) as $filename=>$cur) {
$filesize=$cur->getSize();
$bytestotal+=$filesize;
$nbfiles++;
echo "$filename => $filesize\n";
}
$bytestotal=number_format($bytestotal);
echo "Total: $nbfiles files, $bytestotal bytes\n";
?>
dblanchard1 at bbox dot fr ¶
1 year ago
If you want to copy all files recursively from a source directory to some destination :
$directory = new RecursiveDirectoryIterator("./source_path/");
foreach (new RecursiveIteratorIterator($directory) as $filename=>$current) {
$src = $current->getPathName();
$dest = "./destination_path/" . $current->getFileName();
echo "copy " . $src . " => " . $dest . "\n";
copy($src, $dest);
}
I hope it can help someone because when I looked for this solution I had to transform another example to get it.
rockerBOO ¶
11 months ago
When looping through the RecursiveDirectoryIterator , the results use SplFileInfo.
Edward Rudd ¶
1 year ago
(related to the post about exceptions in getChildren().
instead of subclassing you can simply use the CATCH_GET_CHILD flag for RecursiveIteratorIterator
new RecursiveIteratorIterator($diriter, RecursiveIteratorIterator::CATCH_GET_CHILD);
