Validates and sends an email

gistfile1.php

<?php

class ContactForm {

	public function send_contact_form() {
	
		$validation = new Phpr_Validation();
		
		$validation->add('name')->fn('trim')->required('Please enter your name');
		$validation->add('email')->fn('trim')->required('Please enter your email address')->email(false, 'Please enter a valid email address');
	
		$validation->add('subject')->fn('trim');
		$validation->add('order_no')->fn('trim');
		$validation->add('message')->fn('trim')->required('Please enter a message');
	
		if(!$validation->validate($_POST))
			$validation->throwException();
		
		
		$template = System_EmailTemplate::create()->find_by_code('shop:contact_form');
		if( ! $template)
			throw new Cms_Exception('Could not find email template with code "shop:contact_form". Please create this email template to send the contact form.');
	
	
		$users = Users_User::create()->from('users', 'distinct users.*');
		$users->join('shop_roles', 'shop_roles.id=users.shop_role_id');
		$users->where('shop_roles.name=?', 'Default');
		$users->where('(users.status is null or users.status = 0)');
		$users = $users->find_all();
		if( ! $users->count)
			throw new Cms_Exception('Could not find any people to send to. Please add some users to the "Default" user group.');
	
			
		try {
			$message = str_replace(
				array(
					'{name}',
					'{email}',
					'{subject}',
					'{order_no}',
					'{message}'
				),
				array(
					$validation->fieldValues['name'],
					$validation->fieldValues['email'],
					$validation->fieldValues['subject'],
					$validation->fieldValues['order_no'],
					nl2br($validation->fieldValues['message']),
				),
				$template->content
			);
			
			$template->send_to_team($users, $message);
		}
		catch (Exception $ex) {
			throw new Cms_Exception($ex->getMessage());
		}
		
	}

}