[Howto Filter symbols like ëíñçíàéö etc.]

It does not work if $change contains non-ASCII chars like α - β - Ğ - ğ - İ - ı - Ş - ş


<?php

$string = 'bla bla bla ëíñçíàéö bla bla ñç...';

$change = array("α",  "β",  "Ğ", "ğ" );

$tothis = array('a', 'i', 'n', 'c', 'i', 'a', 'e', 'o');

echo str_replace($change, $tothis, $string);

?>

[PHP + preg + international chars problem]

If your server does not support unicode completely, here you can test the server's response and find out some tricks accordingly:

http://www.nottodolist.com/turkishTest.php

The script is here. ( Just replace <> with < ):
http://www.nottodolist.com/turkishTest.html
http://www.nottodolist.com/test2.html