laravel update env file programmatically

1public static function envUpdate($key, $value)
2    {
3        $path = base_path('.env');
4
5        if (file_exists($path)) {
6
7            file_put_contents($path, str_replace(
8                $key . '=' . env($key), $key . '=' . $value, file_get_contents($path)
9            ));
10        }
11    }
12
13And reload the page programatically again using js only once
14<script>
15  	window.location.reload();
16</script>

1protected function updateDotEnv($key, $newValue, $delim='')
2{
3
4    $path = base_path('.env');
5    // get old value from current env
6    $oldValue = env($key);
7
8    // was there any change?
9    if ($oldValue === $newValue) {
10        return;
11    }
12
13    // rewrite file content with changed data
14    if (file_exists($path)) {
15        // replace current value with new value 
16        file_put_contents(
17            $path, str_replace(
18                $key.'='.$delim.$oldValue.$delim, 
19                $key.'='.$delim.$newValue.$delim, 
20                file_get_contents($path)
21            )
22        );
23    }
24}