README

A PHP class that represents a directory on a filesystem.

With it, you can:

• Get the files in it, including glob-like patterns
• Find the most recent file
• Derive a unique filename based on a pattern
• Create or copy files in it
• Obtain the total size
• Delete it recursively

Creating a Instance

Simply path the full path to the directory to the constructor:

$directory = new Directory( '/path/to/dir' );

Checking it Exists

The directory needn't exist when you create an instance; use the exists() method to check that it does.

if ( $directory->exists ) {
	// do something
}

Checking it's a Directory

It might also a good idea to check that the path you provided is actually a directory, not a file.

if ( ! $directory->isDirectory( ) ) {
	// looks like it's a file!
}

Creating it

To create a directory, pass the path to the constructor and then call create().

$directory = new Directory( '/path/to/new/directory' );
$directory->create( );

By default the mode is set to 0777, but you can override this by passing it as an argument:

$directory->create( 0755 );

Alternatively, you can use createIfDoesNotExist() which, as the name suggests, will create it if it does not already exist.

This action is recusrive; i.e. it will create any necessary parent directories.

Listing Files

Call getFiles() to get a list of the files in the directory.

$files = $directory->getFiles( );

This will return an array with the full path to the files in the directory, excluding directories.

To include the directories:

$files = $directory->getFiles( true );

To get all of the files in a directory including any subdirectories, pass true as the second argument:

$files = $directory->getFiles( false, true );

Glob

To glob the directory:

$textFiles = $directory->glob( '*.txt' );

Checking if a File Exists

To check whether a directory contains a file with a particular name:

if ( $directory->fileExists( 'logo.png' ) ) {
	// do something
}

Getting the Most Recent file

Use mostRecentFile() to get the most recently modified file.

$recent = $directory->mostRecentFile( );

You can use a pattern; for example to get the most recently modified text file:

$recent = $directory->mostRecentFile( '*.txt' );

To include directories, pass true as the second argument.

Getting the Total Size

To get the total size, in bytes, of a directory:

$size = $directory->totalSize( );

Unique Filenames

Suppose you allow users to upload an avatar, which you store in a directory named avatars with the filename in the form username.png.

That works fine initially, but causes problems if a user uploads a replacement.

To get around that, ensureUniqueFilename() will return a similar filename that doesn't exist.

For example, if joebloggs.png exists, it'll return joebloggs-1.png. A subsequent call will return joebloggs-2.png, and so on.

The method returns the filename only, but you can get the full path with fullPathToFile().

For example:

$directory = new Directory( '/path/to/avatars' );
$filename = $directory-> ensureUniqueFilename( 'joebloggs.png' );
// joebloggs-1.png
$filepath = $directory->fullPathToFile( $filename );
// /path/to/avatars/joebloggs-1.png

Creating a File

To create an empty file in a directory:

$directory->createFile( 'filename.txt' );

To create a file, providing its contents:

$directory->createFile( 'filename.txt', 'the contents' );

Copying a File Into a Directory

To copy a file into the directory:

$directory->copyFileInto( '/path/to/your/file' );

Deleting a Directory

Use with caution!

To delete a directory, its contents and it's sub-directories, simply call delete().