PHP Convert Special Char 2 COMMON Alphabetical Char

<?php
/*
* Created By Vinsensius Angelo, Indonesia (22 June 2012)
* Programming Language : PHP 4 / PHP 5
* Description : This function convert some special characthers to COMMON alphabetical characthers
* Licence : Free
* Version : 1.0
* WARNING :
*   I'm not responsibility for any your risk, because it's free
*   If any wrong convertion, fix it your self
*   If you angry, I WILL KICK YOU :D
*/
function convertSCTCC($inputStr){
    $trans = array("á" => "a", "Á" => "A", "à" => "a", "À" => "A", "â" => "a", "Â" => "A", "å" => "a", "Å" => "A", "ã" => "a", "Ã" => "A", "ä" => "a", "Ä" => "A", "æ" => "aE", "Æ" => "AE", "ç" => "c", "Ç" => "C", "é" => "e", "É" => "E", "è" => "e", "È" => "E", "ê" => "e", "Ê" => "E", "ë" => "e", "Ë" => "E", "í" => "i", "Í" => "I", "ì" => "i", "Ì" => "I", "î" => "i", "Î" => "I", "ï" => "i", "Ï" => "I", "ñ" => "n", "Ñ" => "N", "ó" => "o", "Ó" => "O", "ò" => "o", "Ò" => "O", "ô" => "o", "Ô" => "O", "ø" => "o", "Ø" => "O", "õ" => "o", "Õ" => "O", "ö" => "o", "Ö" => "O", "ß" => "b", "ú" => "u", "Ú" => "U", "ù" => "u", "Ù" => "U", "û" => "u", "Û" => "U", "ü" => "u", "Ü" => "U", "ÿ" => "y", "´" => "'", "`" => "'", '“' => '"', '”' => '"', "¿" => '?');
    return strtr($inputStr, $trans);
}
/* Example */
$inputStr = "ã Á í Î ú Û ë Ê ø Õ ¿ ” “ ";
echo "Source String : ".$inputStr."<br>";
echo "Normalize String : ".convertSCTCC($inputStr)."<br>";
?>