mailer.php

<?php

if ( ! function_exists('mailer') )
{
	function mailer($to, $from, $subject, $template, $data = array())
	{
		$headers = "Content-Type: text/html; charset=UTF-8\r\n";
		$headers .= "From: {$from}\r\n";
		
		$path = get_theme_root() . '/' . get_template() . '/';
		
		ob_start();
		
		extract($data);
		
		require($path."emails/{$template}.php");
		
		$message = ob_get_contents();
		
		ob_clean();

		mail($to, $subject, $message, $headers);
	}
}