This function will format a MAC address into XX:XX:XX:XX:XX:XX
format from whatever format is passed to the function. The
delimiter (':' in the example above) will be replaced with
whatever string is passed to the $delimiter parameter
(default ':').
Parameter
string $input - The
string containing the MAC Address
string $delimiter - The
string representing the delimiter to use when
formatting the MAC Address
string $uppercase - If set to
TRUE (default), the alpha characters in the hexadecimal
values in the MAC Address will be returned in uppercase. If
FALSE, the alpha characters in the hexadecimal values will be
returned in lowercase.
Return value
string - The formatted MAC Address
or FALSE if the syntax of the MAC address is invalid