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PHP Build a Basic PHP Website (2018) Enhancing a Form Escaping Output

Rasbin Rijal
PLUS
Rasbin Rijal
Courses Plus Student 10,864 Points
Posted by Rasbin Rijal
Rasbin Rijal
Courses Plus Student 10,864 Points

[ SOLVED ]Escaping output in php form

How do I escape output and get rid of the malicious data when checking this code?

Thanks!

views_listing_edit.php 
<?php require_once("controllers_listing.php"); ?><html>
<body>

    <h1>Edit Listing</h1>

  <form method="post">
        <table>
            <tr>
                <th>
                    <label for="name">Name</label>
                </th>
                <td>
                   <input id="name" name="name" value="<?php echo htmlspecialchars($_POST["name"]$listing_name);?>">
                </td>
            </tr>
            <tr>
                <th>
                    <label for="Link">Link</label>
                </th>
                <td>
                    <input id="link" name="link" value="<?php echo htmlspecialchars($_POST["link"]$listing_link); ?>">
                </td>
            </tr>
            <tr>
                <th>
                    <label for="Description">Description</label>
                </th>
                <td>
                   <textarea id="description" name="description">)<?php echo htmlspecialchars($_POST["description"]$listing_description); ?></textarea>
                </td>
            </tr>    
        </table>
        <input type="submit" value="Save">
    </form>

</body>
</html>

1 Answer

Mikkel Rasmussen
Mikkel Rasmussen
31,772 Points
Mikkel Rasmussen
Mikkel Rasmussen
31,772 Points

You dont need the $_POST the content you need to get rid of the malicious are saved in the variables.

So all you need to do is this:

<?php require_once("controllers_listing.php"); ?><html>
<body>

    <h1>Edit Listing</h1>

  <form method="post">
        <table>
            <tr>
                <th>
                    <label for="name">Name</label>
                </th>
                <td>
                   <input id="name" name="name" value="<?php echo htmlspecialchars($listing_name);?>">
                </td>
            </tr>
            <tr>
                <th>
                    <label for="Link">Link</label>
                </th>
                <td>
                    <input id="link" name="link" value="<?php echo htmlspecialchars($listing_link); ?>">
                </td>
            </tr>
            <tr>
                <th>
                    <label for="Description">Description</label>
                </th>
                <td>
                   <textarea id="description" name="description">)<?php echo htmlspecialchars($listing_description); ?></textarea>
                </td>
            </tr>    
        </table>
        <input type="submit" value="Save">
    </form>

</body>
</html>