我想使這個頁面安全,但我不知道我應該從哪裏開始。因爲我昨天注入了一些資源,所以我逃避了mysql的轉義字符串,但是我沒有太多幫助。我不知道任何有關PDO的事情,你能把我搞定嗎?這是代碼。參數化語句和安全性
<?php
//category.php
require_once('startsession.php');
require_once('php/mysql_prisijungimas.php');
include 'connect.php';
//first select the category based on $_GET['cat_id']
$sql = "SELECT
cat_id,
cat_name,
cat_description
FROM
categories
WHERE
cat_id = " . mysql_real_escape_string($dbc, trim($_GET['id']));
$result = mysql_query($sql);
if(!$result)
{
echo 'The category could not be displayed, please try again later.' . mysql_error();
}
else
{
if(mysql_num_rows($result) == 0)
{
echo 'This category does not exist.';
}
else
{
//display category data
while($row = mysql_fetch_assoc($result))
{
echo '<h2>Topics in ′' . $row['cat_name'] . '′ category</h2><br />';
}
//do a query for the topics
$sql = "SELECT
topic_id,
topic_subject,
topic_date,
topic_cat
FROM
topics
WHERE
topic_cat = " . mysql_real_escape_string($dbc, trim($_GET['id']));
$result = mysql_query($sql);
if(!$result)
{
echo 'The topics could not be displayed, please try again later.';
}
else
{
if(mysql_num_rows($result) == 0)
{
echo 'There are no topics in this category yet.';
}
else
{
//prepare the table
echo '<table border="1">
<tr>
<th>Topic</th>
<th>Created at</th>
</tr>';
while($row = mysql_fetch_assoc($result))
{
echo '<tr>';
echo '<td class="leftpart">';
echo '<h3><a href="topic.php?id=' . $row['topic_id'] . '">' . $row['topic_subject'] . '</a><br /><h3>';
echo '</td>';
echo '<td class="rightpart">';
echo date('d-m-Y', strtotime($row['topic_date']));
echo '</td>';
echo '</tr>';
}
}
}
}
}
?>
那麼這將無法與MySQL的擴展。 PDO支持[預先準備的語句](http://php.net/manual/en/pdo.prepared-statements.php) – 2013-05-13 14:12:24
[偉大的逃避現實(或:你需要知道如何處理文本中的文本)](http ://kunststube.net/escapism/) – deceze 2013-05-13 14:27:32