транслит РУС- АНГ

<?php
function encodestring($st)
  {
    
$st=strtr($st,"абвгдеёзийклмнопрстуфхъыэ",
    
"abvgdeeziyklmnoprstufh'iei");
    
$st=strtr($st,"АБВГДЕЁЗИЙКЛМНОПРСТУФХЪЫЭ",
    
"ABVGDEEZIYKLMNOPRSTUFH'IEI");
    
$st=strtr($st,
                    array(
                        
"ж"=>"zh", "ц"=>"ts", "ч"=>"ch", "ш"=>"sh",
                        
"щ"=>"shch","ь"=>"", "ю"=>"yu", "я"=>"ya",
                        
"Ж"=>"ZH", "Ц"=>"TS", "Ч"=>"CH", "Ш"=>"SH",
                        
"Щ"=>"SHCH","Ь"=>"", "Ю"=>"YU", "Я"=>"YA",
                        
"ї"=>"i", "Ї"=>"Yi", "є"=>"ie", "Є"=>"Ye"
                        
)
             );
    return 
$st;
  }
?>

<?php
preg_match
("#<a.*?href=\"(.+?)\".*?>.+</a>#is",$page[$p],$out);
unset(
$out[0]);
$href = encodestring($out[1]);
$newname = preg_replace("#<a.*?href=\"(.+?)\".*?>(.+?)</a>#is","<a href=\"".$href."\">$2</a>",$page[$p]);
?>