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    <p>I'd use an empty <code>action</code> and post the form to itself. That way, you'll be able to display the errors in the same page:</p> <p><strong>The structure:</strong></p> <pre><code>&lt;?php if(isset($_POST['submit'])){ //validation } &lt;form action="" method="post"&gt; &lt;!-- input fields here --&gt; &lt;/form </code></pre> <p><strong>Full code:</strong></p> <pre><code>&lt;?php if(isset( $_POST['submitbutton']) ){ $email_to = "foo@bar.com"; //my email $email_subject = "form submission"; $email_from ="form test"; $biz_email = $_POST['biz_email']; $error_message = ""; function died($error) { echo "There are errors in your submission:&lt;br /&gt;&lt;br /&gt;"; echo $error."&lt;br /&gt;&lt;br /&gt;"; echo "Please go back and fix these errors.&lt;br /&gt;&lt;br /&gt;"; die(); } $email_message = "Form details below.\n\n"; function clean_string($string) { $bad = array("content-type","bcc:","to:","cc:","href"); return str_replace($bad,"",$string); } $email_message .= "Email: ".clean_string($biz_email)."\n"; $headers = 'From: '.$biz_email."\r\n". 'Reply-To: '.$biz_email."\r\n" . 'X-Mailer: PHP/' . phpversion(); @mail($email_to, $email_subject, $email_message, $headers); } ?&gt; &lt;!-- form start --&gt; &lt;div id="notification"&gt;&lt;/div&gt; &lt;form id="downloadForm" method="post" action=""&gt; &lt;label for="biz_email"&gt;Business Email:&lt;/label&gt;&lt;input type="text" name="biz_email"&gt; &lt;input type="submit" id="submit" name="submitbutton" class="submit_button"&gt;&lt;/div&gt; &lt;/form&gt; &lt;!-- form end --&gt; </code></pre> <p>Hope this helps!</p>
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    1. POHow can I display form validation messages on the same page as the form itself?
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