seo link yapımında ş ç ı ğ harflerinde sorun

function make_friendly($string)
{
    $string = trim($string);
    $string = strtolower($string);
    $find = array('<b>', '</b>');
    $string = str_replace ($find, '', $string);
    $string = preg_replace('/<(\/{0,1})img(.*?)(\/{0,1})\>/', 'image', $string);
    $find = array(' ', '"', '&', '&', '\r\n', '\n', '/', '\\', '+', '<', '>');
    $string = str_replace ($find, '-', $string);
    $find = array('é', 'è', 'ë', 'ê', 'É', 'È', 'Ë', 'Ê');
    $string = str_replace ($find, 'e', $string);
    $find = array('í', 'i', 'ì', 'î', 'ï', 'I', 'I', 'Í', 'Ì', 'Î', 'Ï');
    $string = str_replace ($find, 'i', $string);
    $find = array('ó', 'ö', 'Ö', 'ò', 'ô', 'Ó', 'Ò', 'Ô');
    $string = str_replace ($find, 'o', $string);
    $find = array('á', 'ä', 'â', 'à', 'â', 'Ä', 'Â', 'Á', 'À', 'Â');
    $string = str_replace ($find, 'a', $string);
    $find = array('ú', 'ü', 'Ü', 'ù', 'û', 'Ú', 'Ù', 'Û');
    $string = str_replace ($find, 'u', $string);
    $find = array('ç', 'Ç');
    $string = str_replace ($find, 'c', $string);
    $find = array('s', 'S');
    $string = str_replace ($find, 's', $string);
    $find = array('g', 'G');
    $string = str_replace ($find, 'g', $string);
    $find = array('/[^a-z0-9\-<>]/', '/[\-]+/', '/<[^>]*>/');
    $repl = array('', '-', '');
    $string = preg_replace ($find, $repl, $string);
    $string = str_replace ('--', '-', $string);
    $string = $string.".html";
	return $string;
}

<?php
function duzen ($kelime){

$kelime= strtolower($kelime);
$kelime = str_replace("ı","i",$kelime);
$kelime = str_replace("ç","c",$kelime);
$kelime = str_replace("ö","o",$kelime);
$kelime = str_replace("ş","s",$kelime);
$kelime = str_replace("ğ","g",$kelime);
$kelime = str_replace("ü","u",$kelime);

$kelime = str_replace("I","i",$kelime);
$kelime = str_replace(" ","+",$kelime);
$kelime = str_replace("/","",$kelime);
$kelime = str_replace("&","",$kelime);
$kelime = str_replace("'","-",$kelime);
$kelime = str_replace(".","-",$kelime);
$kelime = str_replace("amp;","-",$kelime);
$kelime = str_replace("-","-",$kelime);
$kelime = str_replace("İ","i",$kelime);
$kelime = str_replace("Ğ","g",$kelime);

$kelime = str_replace("Ş","s",$kelime);
$kelime = str_replace("İ","i",$kelime);
$kelime = str_replace("Ö","o",$kelime);
$kelime = str_replace("Ç","c",$kelime);
$kelime = str_replace("#305;","i",$kelime);


$kelime = str_replace("#350;","s",$kelime);
$kelime = str_replace("#287;","g",$kelime);
$kelime = str_replace("?;","i",$kelime);
$kelime = str_replace("#199;","c",$kelime);
$kelime = str_replace("ş","s",$kelime);
return($kelime);
}
?>

function haymi_seo($s) {
$tr = array('ş','Ş','ı','İ','ğ','Ğ','ü','Ü','ö','Ö','Ç','ç');
$eng = array('s','S','i','I','g','G','u','U','o','O','C','c');
$s = str_replace($tr,$eng,$s);
$s = eregi_replace('[^0-9A-Za-z]',"-",$s);

for($i=0;$i <= 10;$i++) {
$s = str_replace("--","-",$s);
}
return strtolower($s);
}

$s = eregi_replace('[^0-9A-Za-z]',"-",$s);