Find files with a pattern in a directory
define('DIR_PATH', 'DIRECTORY PATH');
$filenames = scandir(DIR_PATH);
$pattern = '/^PATTERN/';
$matches = array();
$matches[] = preg_grep($pattern, $filenames);
print_r($matches);
define('DIR_PATH', 'DIRECTORY PATH');
$filenames = scandir(DIR_PATH);
$pattern = '/^PATTERN/';
$matches = array();
$matches[] = preg_grep($pattern, $filenames);
print_r($matches);