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Bootstrap 3 Contact Form with Google's reCaptcha
A simple bootstrap 3 contact form using Google's reCAPTCHA. Submitted messages are sent to a specified email address using SMTP with support for SSL or TLS transport.
| Versions | Major Enhancement |
|---|---|
| 1.3 | Add support for Bootstrap Validator. If provided, will use it to validate contact form. |
| 1.2 | Replaced PHP SecureImage Captcha with Google's reCAPTCHA. |
| 1.1 | Used PHPMailer. Support for SSL/TLS transport. Extracted configuration values to environment variables. |
| 1.0 | First Version - Used PHP SecureImage and PHP mail function |
- version > 5.2.0
- PHPMailer (included in library/vender/php_mailer/**)
- Bootstrap 3 version >3.1
- jQuery
- Optional International Telephone Input (included in assets/vender/intl-tel-input/**)- This is used to validate and format the phone input field. Only need this if the phone field is present.
You must obtain a Site Key and Secret Key from Google. The Site Key must be entered into the Contact Form HTML in the place of the text your_site_key. The Secret Key should be entered as an configuration value (see next section).
Configuration values to the contact form are passed in via Environment Variables. The following variables need to be defined:
| Name | Description |
|---|---|
| FEEDBACK_HOSTNAME | Host name for SMTP server |
| FEEDBACK_EMAIL | Email address to authenticate to SMTP server with |
| FEEDBACK_PASSWORD | Password to authenticate to SMTP server with |
| FEEDBACK_ENCRYPTION | If specified will use encryption. Valid values: TLS or SSL |
| RECAPTCHA_SECRET_KEY | reCAPTCHA secret key. |
| FEEDBACK_SKIP_AUTH | Optional If specified, will not authenticate with email/password |
Environment variables can be specified in a variety of ways. For example, if using Apache (and mod_env is enabled), they can be specified in .htaccess:
SetEnv FEEDBACK_HOSTNAME smtp.gmail.com
SetEnv FEEDBACK_EMAIL [email protected]
SetEnv FEEDBACK_PASSWORD my!password!
SetEnv FEEDBACK_ENCRYPTION TLS
SetEnv RECAPTCHA_SECRET_KEY 7823skdgjksd828sjdgkn
Tip: Environment Variables are used in Sendmail.php. If you don't want to use Environment Variables, you can edit sendmail.php, replacing calls to #getenv with the corresponding configuration value like in this Example Gist.
There's a branch for that! Check out the branch: Contact Form without CAPTCHA.
Demo: http://jonbake.com/demos/contact-form/
Blog Posts: Bootstrap 3 Contact Form with Captch A Better Contact Form