function slugify($text, string $divider = '-')
{
// replace non letter or digits by divider
$text = preg_replace('~[^pLd]+~u', $divider, $text);
// transliterate
$text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);
// remove unwanted characters
$text = preg_replace('~[^-w]+~', '', $text);
// trim
$text = trim($text, $divider);
// remove duplicate divider
$text = preg_replace('~-+~', $divider, $text);
// lowercase
$text = strtolower($text);
if (empty($text)) {
return 'n-a';
}
return $text;
}
echo slugify('Hello World'); //hello-world
echo slugify('Hello World', '_'); //hello_world