Slugs for non western languages (asian, arabic)

PHP
1

What would be the best way to convert slugs for non western languages normally I do this…

public function getSlug($title){
		$clean = iconv('UTF-8', 'ASCII//TRANSLIT', $title);
		$clean = preg_replace("/[^a-zA-Z0-9\\/_| -]/", '', $clean);
		$clean = strtolower(trim($clean));
		$clean = preg_replace("/[\\/_| -]+/", $this->replace_space, $clean);

        return $clean;
    }

But when put some asian characters in there, it will be empty… is there anyway to make this smarter so it will leave asian characters intact?

2

What happens with the asian characters when you just run iconv by itself, and maybe change ASCII to something else?