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PHP 8 Changes #2

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827ba39
PHP 8 changes
s22-tech Apr 11, 2022
c6f0510
Update README.md
s22-tech Apr 11, 2022
a5a9f65
PHP 8 changes
s22-tech Apr 11, 2022
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2 changes: 2 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
# PHP Contact Form with HTML Emails & Optional Captcha (Anti-Spam)
Simple PHP contact form with HTML emails and an optional, math based captcha.

2022-04-11 : Updated to work with PHP 8

## Instructions
[See blog article.](https://www.aaronfagan.ca/blog/2015/php-contact-form-with-html-emails-optional-captcha-anti-spam/)

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80 changes: 55 additions & 25 deletions contact-form.php
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Expand Up @@ -2,49 +2,71 @@
// BEGIN CONFIGURATION ////////////////////////////////////////////////

define('EMAIL_TO', '[email protected]');
define('EMAIL_SUBJECT', 'Test Subject');
define('CAPTCHA_ENABLED', '1'); // 0 - Disabled, 1 - Enabled
define('EMAIL_SUBJECT', 'Test Form');
define('CAPTCHA_ENABLED', '1'); // 0 - Disabled, 1 - Enabled

// END CONFIGURATION ////////////////////////////////////////////////

define('CAPTCHA1', rand(1,9));
define('CAPTCHA2', rand(1,9));

if (empty($name)) $name = '';
if (empty($email)) $email = '';
if (empty($message)) $message = '';
if (empty($msg)) $msg = '';

if ($_POST) {
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$captcha = $_POST['captcha'];
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$captcha = $_POST['captcha'];
$captcha1 = $_POST['captcha1'];
$captcha2 = $_POST['captcha2'];

// If captcha disabled, set variable values to avoid error
// If captcha disabled, set variable values to avoid error.
if (CAPTCHA_ENABLED == '0') { $captcha1 = '1'; $captcha2 = '1'; $captcha = '2'; }

// Error handling
if (empty($name) || empty($email) || empty($message)) { $msg = 'One or more fields is blank!'; }
else if (!$email == '' && (!strstr($email,'@') || !strstr($email,'.'))) { $msg = 'Your email address is not formatted correctly!'; }
else if (($captcha1 + $captcha2) != $captcha) { $msg = 'Anti-spam incorrect! Please try again.'; }
// Error handling.
if (empty($name) || empty($email) || empty($message)) {
$msg = 'One or more fields were left empty!';
}
else if (!$email == '' && (!strstr($email, '@') || !strstr($email, '.'))) {
$msg = 'Your email address is not formatted correctly!';
}
else if (($captcha1 + $captcha2) != $captcha) {
$msg = 'Your anti-spam answer is incorrect! Please try again.';
}

// Build email headers
// Build email headers.
else {
$headers = "From: ".$name." <".$email.">\r\n";
$headers .= "Reply-To: ".$name." <".$email.">\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=UTF-8\r\n";
$headers['MIME-Version'] = '1.0';
$headers['Content-type'] = 'text/html;charset=UTF-8';
$headers['Return-Path'] = EMAIL_TO;
$headers['From'] = $name.' <'.$email.'>';
$headers['Reply-To'] = $name.' <'.$email.'>';

// Build email body
// Build email body.
$body = '
<html><body>
<html>
<body>
<div style="max-width:800px;">
<table border="0" cellspacing="0" cellpadding="0" width="100%">
<tr><td style="border-bottom: solid 1px #CCC; font-size:18px; font-weight:bold; padding:10px;" colspan="2">'.$email_subject.'</td></tr>
<tr><td valign="top" style="padding:10px; border-bottom: solid 1px #CCC;" valign="top"><b>Name:</b></td><td style="padding:10px; border-bottom: solid 1px #CCC;">'.$name.' ('.$email.')</td></tr>
<tr><td valign="top" style="padding:10px; border-bottom: solid 1px #CCC;" valign="top"><b>Message:</b></td><td style="padding:10px; border-bottom: solid 1px #CCC;">'.$message.'</td></tr>
<tr>
<td style="border-bottom: solid 1px #CCC; font-size:18px; font-weight:bold; padding:10px;" colspan="2">'.EMAIL_SUBJECT.'</td>
</tr>
<tr>
<td valign="top" style="padding:10px; border-bottom: solid 1px #CCC;" valign="top"><b>Name:</b></td><td style="padding:10px; border-bottom: solid 1px #CCC;">'.$name.' ('.$email.')</td>
</tr>
<tr>
<td valign="top" style="padding:10px; border-bottom: solid 1px #CCC;" valign="top"><b>Message:</b></td><td style="padding:10px; border-bottom: solid 1px #CCC;">'.$message.'</td>
</tr>
</table>
</body></html>
</div>
</body>
</html>
';

// Send the email, reset text boxes on form, and show success message
// Send the email, reset text boxes on form, and show success message.
mail(EMAIL_TO, EMAIL_SUBJECT, $body, $headers);
$name = '';
$email = '';
Expand All @@ -63,16 +85,24 @@
<?php echo $msg; ?>

<form method="post">

<p>Name:<br><input type="text" name="name" value="<?php echo $name; ?>" /></p>

<p>Email:<br><input type="text" name="email" value="<?php echo $email; ?>" /></p>

<p>Message:<br><textarea name="message" rows="5" cols="40" /><?php echo $message; ?></textarea></p>

<?php if (CAPTCHA_ENABLED != '0') { ?>
<p><?php echo CAPTCHA1; ?> + <?php echo CAPTCHA2; ?> = ?<br><input type="text" name="captcha" /></p>

<p><?php echo CAPTCHA1; ?> + <?php echo CAPTCHA2; ?> = ? <br><input type="text" name="captcha" /></p>

<input type="hidden" name="captcha1" value="<?php echo CAPTCHA1; ?>" />
<input type="hidden" name="captcha2" value="<?php echo CAPTCHA2; ?>" />
<?php } ?>

<p><input type="submit" value="Submit" /></p>

</form>

</body>
</html>
</html>