十六进制转RGB

/**
 * 十六进制转RGB
 * @param string $color 16进制颜色值
 * @return array|false
 */
function hex2rgb($color)
{
    $hexColor = str_replace('#', '', $color);
    $lens = strlen($hexColor);
    if ($lens != 3 && $lens != 6) {
        return false;
    }
    $newcolor = '';
    if ($lens == 3) {
        for ($i = 0; $i < $lens; $i++) {
            $newcolor .= $hexColor[$i] . $hexColor[$i];
        }
    } else {
        $newcolor = $hexColor;
    }
    $hex = str_split($newcolor, 2);
    $rgb = [];
    foreach ($hex as $key => $vls) {
        $rgb[] = hexdec($vls);
    }
    return $rgb;
}