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POPHP Filter Failing
 

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  1. POPHP Filter Failing
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    <p>In the following code the email sanitizing and validation:</p> <pre><code>if ($_POST['email'] != "") { $email = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL); if (!filter_var($email, FILTER_VALIDATE_EMAIL)) { $errors .= "$email is &lt;strong&gt;NOT&lt;/strong&gt; a valid email address.&lt;br/&gt;&lt;br/&gt;"; } } else { $errors .= 'Please enter your email address.&lt;br/&gt;'; } </code></pre> <p>is allowing:</p> <p><strong>ck@////bushidodee/xom</strong> </p> <p>New to filters, and don't get why this is not sanitized? </p> <p><hr> <strong>Full Code:</strong> <pre><code> if (isset($_POST['Submit'])) { if ($_POST['name'] != "") { $_POST['name'] = filter_var($_POST['name'], FILTER_SANITIZE_STRING); if ($_POST['name'] == "") { $errors .= 'Please enter a valid name.&lt;br/&gt;&lt;br/&gt;'; } } else { $errors .= 'Please enter your name.&lt;br/&gt;'; } if ($_POST['email'] != "") { $email = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL); if (!filter_var($email, FILTER_VALIDATE_EMAIL)) { $errors .= "$email is &lt;strong&gt;NOT&lt;/strong&gt; a valid email address.&lt;br/&gt;&lt;br/&gt;"; } } else { $errors .= 'Please enter your email address.&lt;br/&gt;'; } if ($_POST['homepage'] != "") { $homepage = filter_var($_POST['homepage'], FILTER_SANITIZE_URL); if (!filter_var($homepage, FILTER_VALIDATE_URL)) { $errors .= "$homepage is &lt;strong&gt;NOT&lt;/strong&gt; a valid URL.&lt;br/&gt;&lt;br/&gt;"; } } else { $errors .= 'Please enter your home page.&lt;br/&gt;'; } if ($_POST['message'] != "") { $_POST['message'] = filter_var($_POST['message'], FILTER_SANITIZE_STRING); if ($_POST['message'] == "") { $errors .= 'Please enter a message to send.&lt;br/&gt;'; } } else { $errors .= 'Please enter a message to send.&lt;br/&gt;'; } if (!$errors) { // $mail_to = 'me@somewhere.com'; // $subject = 'New Mail from Form Submission'; // $message = 'From: ' . $_POST['name'] . "\n"; // $message .= 'Email: ' . $_POST['email'] . "\n"; // $message .= 'Homepage: ' . $_POST['homepage'] . "\n"; // $message .= "Message:\n" . $_POST['message'] . "\n\n"; // mail($to, $subject, $message); print_r($_POST); echo "Thank you for your email!&lt;br/&gt;&lt;br/&gt;"; } else { echo '&lt;div style="color: red"&gt;' . $errors . '&lt;br/&gt;&lt;/div&gt;'; } } ?&gt; &lt;form name="form1" method="post" action="form-email.php"&gt; Name: &lt;br/&gt; &lt;input type="text" name="name" value="&lt;?php echo $_POST['name']; ?&gt;" size="50" /&gt;&lt;br/&gt;&lt;br/&gt; Email Address: &lt;br/&gt; &lt;input type="text" name="email" value="&lt;?php echo $_POST['email']; ?&gt;" size="50"/&gt; &lt;br/&gt;&lt;br/&gt; Home Page: &lt;br/&gt; &lt;input type="text" name="homepage" value="&lt;?php echo $_POST['homepage']; ?&gt;" size="50" /&gt; &lt;br/&gt;&lt;br/&gt; Message: &lt;br/&gt; &lt;textarea name="message" rows="5" cols="50"&gt;&lt;?php echo $_POST['message']; ?&gt;&lt;/textarea&gt; &lt;br/&gt; &lt;input type="submit" name="Submit" value="Submit Form Data" /&gt; &lt;/form&gt; </code></pre>
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