A secured PHP contact form MUST necessarily have PHP server side validations. The data validations protect your form from common web attacks like javascript injection, sql injection, website hacking, uploading malicious script and etc.
Easy PHP Contact Form Script supports data validations on all fields. You can customize most of them and their error messages.
See the example form at right side, click the submit button to see the validations.
Tags: form validation example, php contact form with validation, html contact form validation