mail() function – the PHP Manual
mail (PHP 3, PHP 4, PHP 5) mail — Send mail Description bool mail ( string to, string subject, string message [, string additional_headers [, string additional_parameters]] ) Sends an email. Parameters to Receiver, or receivers of the mail. The formatting of this string must comply with RFC 2822. Some examples are: user@example.com user@example.com, anotheruser@example.com User <user@example.com>…