OpenCart 🇺🇦

$files = glob(DIR_CACHE . 'cache.' . preg_replace('/[^A-Z0-9\._-]/i', '', $key) . '.*');

if ($files) {
	$cache = file_get_contents($files[0]);

	$data = unserialize($cache);

	foreach ($files as $file) {
		$time = substr(strrchr($file, '.'), 1);

		if ($time < time()) {
			if (file_exists($file)) {
				unlink($file);
			}
		}
	}

	return $data;
}

$this->delete($key);

$file = DIR_CACHE . 'cache.' . preg_replace('/[^A-Z0-9\._-]/i', '', $key) . '.' . (time() + $this->expire);

$handle = fopen($file, 'w');

fwrite($handle, serialize($value));

fclose($handle);

$files = glob(DIR_CACHE . 'cache.' . preg_replace('/[^A-Z0-9\._-]/i', '', $key) . '.*');

if ($files) {
	foreach ($files as $file) {
		if (file_exists($file)) {
			unlink($file);
		}
	}
}