Birşey anlayamadım

. Biraz daha açıklayabilirmisiniz.
ben şöyle bişi yaptım
<?php
session_start();
// *** Redirect if username exists
$MM_flag="MM_insert";
if (isset($_POST[$MM_flag])) {
$MM_dupKeyRedirect="yorum_fail.php";
$loginUsername = $_POST['soz'];
$LoginRS__query = "SELECT yorum FROM gelenyorum WHERE yorum='" . $loginUsername . "'";
mysql_select_db($database_lyrics, $lyrics);
$LoginRS=mysql_query($LoginRS__query, $lyrics) or die(mysql_error());
$loginFoundUser = mysql_num_rows($LoginRS);
//if there is a row in the database, the username was found - can not add the requested username
if($loginFoundUser){
$MM_qsChar = "?";
//append the username to the redirect page
if (substr_count($MM_dupKeyRedirect,"?") >=1) $MM_qsChar = "&";
$MM_dupKeyRedirect = $MM_dupKeyRedirect . $MM_qsChar ."requsername=".$loginUsername;
header ("Location: $MM_dupKeyRedirect");
exit;
}
}
$formhatasi = "
<script language=\"javascript\">
this.location = \"ekle.php?hata=form\";
</script>
";
$ip = $_SERVER["REMOTE_ADDR"];
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
{
$theValue = (!get_magic_quotes_gpc()) ? addslashes($theValue) : $theValue;
switch ($theType) {
case "text":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "long":
case "int":
$theValue = ($theValue != "") ? intval($theValue) : "NULL";
break;
case "double":
$theValue = ($theValue != "") ? "'" . doubleval($theValue) . "'" : "NULL";
break;
case "date":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "defined":
$theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
break;
}
return $theValue;
}
$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
$editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}
if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "yorumekle")) {
$insertSQL = sprintf("INSERT INTO eklenenler (isim, konu, mail, yorum, ip) VALUES (%s, %s, %s, %s, %s)",
GetSQLValueString($_POST['isim'], "text"),
GetSQLValueString($_POST['konu'], "text"),
GetSQLValueString($_POST['mail'], "text"),
GetSQLValueString($_POST['yorum'], "text"),
GetSQLValueString($ip, "text"));
mysql_select_db($database_lyrics, $lyrics);
$Result1 = mysql_query($insertSQL, $lyrics) or die($formhatasi);
$insertGoTo = "yorum_ok.php";
if (isset($_SERVER['QUERY_STRING'])) {
$insertGoTo .= (strpos($insertGoTo, '?')) ? "&" : "?";
$insertGoTo .= $_SERVER['QUERY_STRING'];
}
header(sprintf("Location: %s", $insertGoTo));
} else { ?>
<?php
}
$textstr = '';
for ($i = 0, $length = 8; $i < $length; $i++) {
$textstr .= $chars[rand(0, count($chars) - 1)];
}
if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "yorumekleadm")) {
$insertSQL = sprintf("INSERT INTO yorum (isim, konu, mail, yorum) VALUES (%s, %s, %s, %s)",
GetSQLValueString($_POST['isim'], "text"),
GetSQLValueString($_POST['konu'], "text"),
GetSQLValueString($_POST['mail'], "text"),
GetSQLValueString($_POST['yorum'], "text"));
mysql_select_db($database_lyrics, $lyrics);
$Result1 = mysql_query($insertSQL, $lyrics) or die($formhatasi);
$insertGoTo = "yorum_ok_adm.php";
if (isset($_SERVER['QUERY_STRING'])) {
$insertGoTo .= (strpos($insertGoTo, '?')) ? "&" : "?";
$insertGoTo .= $_SERVER['QUERY_STRING'];
}
header(sprintf("Location: %s", $insertGoTo));
}önce gelenyorum tablosuna gidiyor ordan ben onay verişyorum yorum ekleniyor fakat şurda bişi takılıo kafama bu nasıl şarkıyla aynı id yi alcak yorumlar ? yada bu kod doğrumu şuan ?