[Resolvido] Problema com mysqli Escape string

<?php
if (isset($_REQUEST["p"])){
         $link = mysqli_connect("localhost", "user", "password","db") or die("Error " . mysqli_error($link));
$query = "SELECT * FROM nav WHERE id=".$_REQUEST["p"]."";
$result = $link->query($query);
$row = mysqli_fetch_array($result);
$title = $row["element"];
echo "<title>Motor Racing News | $title</title>";
} else if (isset($_REQUEST["titulo"])){
         $link = mysqli_connect("localhost", "user", "password","db") or die("Error " . mysqli_error($link));  
         $title = mysqli_real_escape_string($_REQUEST["titulo"]); // sanitize the guid - LINE 52//
$query = "SELECT * FROM news WHERE news_title='".$titulo."'";
$result = $link->query($query);
$row = mysqli_fetch_array($result);
$title = $row['news_title'];
echo "<title>$title</title>";
}
else {
echo "<title>Motor Racing News | Informações de Altas Rotações</title>";
}
?>

<?php
if (isset($_REQUEST["titulo"]))
{
$link = mysqli_connect("localhost", "user", "password","db") or die("Error " . mysqli_error($link));
$titulo = mysqli_real_escape_string($_REQUEST["titulo"]); // sanitize the guid LINE 204 //
$query = "SELECT * FROM news WHERE news_title='".$titulo."'";
$result = $link->query($query); $row = mysqli_fetch_array($result);
?>