dflima/email_validation.php

## email_validation.php
<?php
function validate_email($email) {
    if (filter_var($email, FILTER_VALIDATE_EMAIL))
        return true;
    return false;
}

var_dump(validate_email("me@example.com"));
	<?php
	function validate_email($email) {
	if (filter_var($email, FILTER_VALIDATE_EMAIL))
	return true;
	return false;
	}

	var_dump(validate_email("me@example.com"));