Generate permalink to a blog post Hindi PHP -

i have 1 form in following inputs taken user:

• blog title
• blog description
• permalink access blog

i converting blog title lower case , replacing white spaces dash(-) , storing in permalink access blog .
below code handle operation:

setlocale(lc_all, 'en_us.utf8');  function toascii($str, $replace=array(), $delimiter='-') {   if( !empty($replace) ) {      $str = str_replace((array)$replace, ' ', $str);   }      $clean = iconv('utf-8', 'ascii//translit', $str);      $clean = preg_replace("/[^a-za-z0-9\/_|+ -]/", '', $clean);      $clean = strtolower(trim($clean, '-'));      $clean = preg_replace("/[\/_|+ -]+/", $delimiter, $clean);      return $clean; }      $prmlkn = toascii($blog_headline, $replace=array(), $delimiter='-'); 

this code works fine till blog headline in english. if user types in hindi getting - permalink means not recognizing hindi post values.

this happens because hindi uses extended character set in utf-8 , converting ascii provides latin characters, thus:

$str = "नमस्ते" $clean = iconv('utf-8', 'ascii//translit', $str); // clean empty string "" 

according rfc3986

2. characters

...

the abnf notation defines terminal values non-negative
integers (codepoints) based on us-ascii coded character set
[ascii]. because uri sequence of characters, must invert
relation in order understand uri syntax. therefore, the

integer values used abnf must mapped their
corresponding characters via us-ascii in order complete syntax rules.

a uri composed limited set of characters consisting of
digits, letters, , few graphic symbols. reserved subset of
characters may used delimit syntax components within a
uri while remaining characters, including both unreserved set , reserved characters not acting delimiters, define each
component's identifying data.

you might better off using urlencode() note might make ugly , long permalink

$str = "नमस्ते hello"; $clean = urlencode("$str"); printf("%s",$clean); 

would result in valid ulgy:

%e0%a4%a8%e0%a4%ae%e0%a4%b8%e0%a5%8d%e0%a4%a4%e0%a5%87+hello