diff --git a/README.md b/README.md
index 8b53e82..8d14d88 100644
--- a/README.md
+++ b/README.md
@@ -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/)
diff --git a/contact-form.php b/contact-form.php
index bab6b70..b4c1455 100644
--- a/contact-form.php
+++ b/contact-form.php
@@ -2,49 +2,71 @@
// BEGIN CONFIGURATION ////////////////////////////////////////////////
define('EMAIL_TO', 'your-email@address.com');
-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.
$body = '
-
+
+
+
- | '.$email_subject.' |
- | Name: | '.$name.' ('.$email.') |
- | Message: | '.$message.' |
+
+ | '.EMAIL_SUBJECT.' |
+
+
+ | Name: | '.$name.' ('.$email.') |
+
+
+ | Message: | '.$message.' |
+
-
+
+
+
';
-// 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 = '';
@@ -63,16 +85,24 @@
-