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2 problems with my code, the filter_var doesn't seem to work at all for any of my variables, also the spam_scrubber function doesn't seem to clean \r, and \n, when put in my contact form, it cleans all the rest though just fine. <?php // resources.php function spam_scrubber($value){ $very_bad = array('to:', 'cc:', 'bcc:', 'content-type:', 'mime-version:', 'multipart-mixed:', 'content-transfer-encoding:'); foreach ($very_bad as $v){ if (stripos($value, $v) !== false) return ''; } $value = str_replace(array( "\r", "\n", "%0a", "%0d"), ' ', $value); return trim($value); }//end of spam_scrubber function $scrubbed = array_map('spam_scrubber', $_POST); $comments = strip_tags($scrubbed['comments']); $url = $scrubbed['url']; if (isset($url)){ filter_var($url, FILTER_VALIDATE_URL, FILTER_SANITIZE_URL); } else { echo NULL; } $url2 = $scrubbed['url2']; if (isset($url2)){ filter_var($url2, FILTER_VALIDATE_URL, FILTER_SANITIZE_URL); } else { echo NULL; } $linkpageurl = $scrubbed['linkpageurl']; if (isset($linkpageurl)){ filter_var($linkpageurl, FILTER_VALIDATE_URL, FILTER_SANITIZE_URL); } else { echo NULL; } $linkpageurl2 = $scrubbed['linkpageurl2']; if (isset($linkpageurl2)){ filter_var($linkpageurl2, FILTER_VALIDATE_URL, FILTER_SANITIZE_URL); } else { echo NULL; } $email = $scrubbed['email']; if (isset($email)){ filter_var($email, FILTER_VALIDATE_EMAIL, FILTER_SANITIZE_EMAIL); } else { echo NULL; } $pagerank = $scrubbed['pagerank']; if (isset($pagerank)){ filter_var($pagerank, FILTER_VALIDATE_INT, FILTER_SANITIZE_NUMBER_INT); } else { echo NULL; } if (!empty($email) && !empty($url) && !empty($linkpageurl) && !empty($comments) && !empty($pagerank)){ $body = "Email: {$email}\n\n Url: {$url}\n\n Url2: {$url2}\n\n Pagerank: {$pagerank}\n\n Linkpageurl: {$linkpageurl} \n\n Linkpageurl2: {$linkpageurl2}\n\n Comments: {$comments}"; $body = wordwrap($body, 70); $headers = "From: {$email}\r\n"; mail('email@example.com', 'Link Exchange Form Submission', $body, $headers); echo '<p><em>Thank you for contacting us.</em></p><div id="formecho"><h3>Form submission received, we will get back to you soon.</h3></div>'; $_POST = array(); } else { echo '<p style="font-weight: bold; color: #C00">Please fill out the form completely.</p>'; } ?> <div id="form"> <form action="linkexchangecontactform2.php" method="post"> <p><b>Email:</b> <input type="text" size="30" maxlength="50" name="email" value="<?php if(isset($scrubbed['submit']))echo $scrubbed['email']; ?>" /></p> <p><b>Url:</b> <input type="text" size="30" maxlength="50" name="url" value="<?php if(isset($scrubbed['url']))echo $scrubbed['url']; ?>" /></p> <p><b>2nd Url (leave empty if you have just 1 website):</b><br /> <input type="text" size="30" maxlength="50" name="url2" value="<?php if(isset($scrubbed['url2']))echo $scrubbed['url2']; ?>" /></p> <p><b>Pagerank:</b> <input type="text" size="5" maxlength="10" name="pagerank" value="<?php if(isset($scrubbed['pagerank']))echo $scrubbed['pagerank']; ?>" /></p> <p><b>Link page url:</b> <input type="text" size="30" maxlength="50" name="linkpageurl" value="<?php if(isset($scrubbed['linkpageurl']))echo $scrubbed['linkpageurl']; ?>" /></p> <p><b>2nd Link page url (leave empty if you have just 1 website):</b><br /> <input type="text" size="30" maxlength="50" name="linkpageurl2" value="<?php if(isset($scrubbed['linkpageurl2']))echo $scrubbed['linkpageurl2']; ?>" /></p> <p><b>Comments:</b><br> <textarea name="comments" rows="7" cols="40"><?php if (isset($scrubbed['comments'])) echo $scrubbed['comments']; ?></textarea></p> <p><input type="submit" name="submit" value="Submit" /></p> </form></div>
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- php
- filter_var
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