mailto($email, $title = '', $attributes = '') 
Parameters:
$email (string) – E-mail address 
$title (string) – Anchor title 
$attributes (mixed) – HTML attributes  Returns:
A “mail to” hyperlink  Return type:
string  
Creates a standard HTML e-mail link. Usage example:
echo mailto('[email protected]', 'Click Here to Contact Me');
As with the anchor() tab above, you can set attributes using the third parameter:
$attributes = array('title' => 'Mail me');
echo mailto('[email protected]'