Remove files and directories recursively.

unlinkRecursive.php

unlinkRecursive( $filepath ) {
	if ( is_file($filepath) ) {
		unlink($filepath);
	} elseif ( is_dir($filepath) ) {
		$files = array_diff(scandir($filepath), array('.','..'));
		foreach ( $files as $fpath ) {
			self::unlinkRecursive($fpath);
		}
		rmdir($filepath);
	}
}