function seo($s) {
$tr = array('ş','Ş','ı','I','İ','ğ','Ğ','ü','Ü', 'ö','Ö','Ç','ç','(',')','/',':',',');
$eng = array('s','s','i','i','i','g','g','u','u','o','o', 'c','c','','','-','-','');
$s = str_replace($tr,$eng,$s);
$s = strtolower($s);
$s = preg_replace('/&.+?;/', '', $s);
$s = preg_replace('/\s+/', '-', $s);
$s = preg_replace('|-+|', '-', $s);
$s = preg_replace('/#/', '', $s);
$s = str_replace('.', '', $s);
$s = trim($s, '-');
return $s;
}

Kullanımı :

$seo_link = seo($link);