<?
$aranan = "elma";
$sorgu = @mysql_query("SELECT * FROM tablom WHERE kelime='$aranan'");
$sayim = @mysql_num_rows($sorgu);
if($sorgu > 0) {
 @mysql_query("UPDATE tablom SET hit=(hit + 1) WHERE kelime='$aranan'");
} else {
 @mysql_query("INSERT INTO tablom (kelime) VALUES ('$aranan')");
}
?>