preg_match for Latin5 charsets

Question

検索文字をLatin5文字に一致させるには、これらのコードを変更するにはどうすればよいですか？

while (preg_match("/([-]?)\"([^\"]+)\"/i", $a, $regs)) 

別のコード（私は「C」で始まる単語を照会するとき、私は、文字「C」または「C」または「C」または「C」で始まるすべての単語を取得したいのですが）： PHPのstr_replace機能を使用して

preg_match("/".$pattern."/i", remove_accents($word))) || ($common[$word] == 1) 
foreach($words['hilight'] as $change) { 
while (preg_match("~[^\>](".$change.")[^\<]~i", " ".$title." ", $regs)) { 
    $title = preg_replace("~".$regs[1]."~i", "<b>".$regs[1]."</b>", $title); 
} 
while (preg_match("~[^\>](".$change.")[^\<]~i", " ".$fulltxt." ", $regs)) { 
    $fulltxt = preg_replace("~".$regs[1]."~i", "<b>".$regs[1]."</b>", $fulltxt); 
} 
$url2 = $url; 
while (preg_match("~[^\>](".$change.")[^\<]~i", $url2, $regs)) { 
    $url2 = preg_replace("~".$regs[1]."~i", "<b>".$regs[1]."</b>", $url2); 
} 
} 

Answer 1

は、返信用

 $string="Put here string containing latin 5 characters"; 
     $changethis = array("I","ı","İ","ö","Ö","ü","Ü","ç","Ç","ş","Ş","ğ","Ğ"," ","\'","#","$","%","^","&","*","?"); 
     $tothis = array("i","i","_i","o","_o","u","_u","c","_c","s","_s","g","_g","","","","","","","","",""); 
     $newstring = str_replace($changethis, $tothis, "$string");