Convert hexadecimal color to rgb in PHP

 function afift_hex2rgbcolors($c){
            $c = str_replace("#", "", $c);
            if(strlen($c) == 3){
                $r = hexdec( $c[0] . $c[1] );
                $g = hexdec( $c[1] . $c[1] );
                $b = hexdec( $c[2] . $c[1] );
                }
            elseif (strlen($c) == 6 ){
                $r = hexdec( $c[0] . $c[2] );
                $g = hexdec( $c[2] . $c[2] );
                $b = hexdec( $c[4] . $c[2] );
                }
            else{
                $r = 'ff';
                $g = 'ff';
                $b = '00';
                }
            return Array("red" => $r, "green" => $g, "blue" => $b);
            }
        }