function int_to_rgb( $i ) { return sprintf('#%02X%02X%02X', $i&0xFF , ($i>>8)&0xFF , ($i>>16)&0xFF ); }
function rgb_to_int( $i ) // xxxxxx { $ret = hexdec($i[0].$i[1]); $tmp = hexdec($i[2].$i[3]); if ( $tmp != 0 ) $ret *= $tmp; $tmp = hexdec($i[4].$i[5]); if ( $tmp != 0 ) $ret *= $tmp; return $ret; }