Function that Loops files in a directory and puts them into an array

PHP Loop Directory Function

// Loop Directory Function 
function loopDirectory($path,$filetypes='',$stringmatch='') {
	// initiate the variables
	$array = array();
	$error = '';
	
	// check if $filetypes is set, if so and not an array make an array
	if((!empty($filetypes)) && (!is_array($filetypes))) {
		$filetypes = array($filetypes);
	}
	
	// Open the Directory
	if ($handle = opendir($path)) {
		// Loop Directory
		while (false !== ($entry = readdir($handle))) {
			// Do not include the .. and . file
			if(($entry != '..') && ($entry != '.')) {
				$filepath = $path.$entry; // Set the filepath
				$extension = pathinfo($filepath, PATHINFO_EXTENSION); // Set the file extension
				$modified = filectime($filepath);			
				$addEntry = false;
				// Check if our filetype array is set
				if(is_array($filetypes)) {
					if(in_array($extension,$filetypes)) {
						// Check for string match
						if(!empty($stringmatch)) {
							if(stristr($entry,$stringmatch)) {
								$addEntry = true;
							}
						} else {
							$addEntry = true;
						}
					}
				} else {
					if(!empty($stringmatch)) {
						if(stristr($entry,$stringmatch)) {
							$addEntry = true;
						}
					} else {
						$addEntry = true;
					}
				}
				// Flag to add entry to the array
				if($addEntry) {
					$array[] = array('file_path' => $filepath, 'filename' => $entry, 'date_modified' => $modified, 'file_extension' => $extension);
				}
			}
		}		
	} else {
		$error = "Could not open the path ($path)."; // Open Folder Error
	}
	
	if(DEBUG == true) { if($error) { echo $error; exit; } } // Check for Error
	
	// Return the result
	if(count($array) > 0) {
		return $array;
	} else {
		return false;	
	}
}