我知道sanitize_hex_color 存在用于清理进入数据库的十六进制值（并且仅存在于自定义程序中），但转义这些值的最佳函数是什么。我应该使用sanitize_hex_color? 是否有更好的执行功能？

RGBA值如何？

下面是我现在用来清理十六进制+rgba值的函数：

function example_sanitize_rgba( $color ) {
    if ( \'\' === $color )
        return \'\';

    // If string does not start with \'rgba\', then treat as hex
    // sanitize the hex color and finally convert hex to rgba
    if ( false === strpos( $color, \'rgba\' ) ) {
        return sanitize_hex_color( $color );
    }

    // By now we know the string is formatted as an rgba color so we need to further sanitize it.
    $color = str_replace( \' \', \'\', $color );
    sscanf( $color, \'rgba(%d,%d,%d,%f)\', $red, $green, $blue, $alpha );
    return \'rgba(\'.$red.\',\'.$green.\',\'.$blue.\',\'.$alpha.\')\';

    return \'\';
}

我可以用这个来转义相同的值吗？如果页面上有100多个值怎么办？看起来有点“沉重”。

非常感谢您的任何意见！

function awstheme_sanitize_rgba( $color ) {
    if ( empty( $color ) || is_array( $color ) )
        return \'rgba(0,0,0,0)\';

    // If string does not start with \'rgba\', then treat as hex
    // sanitize the hex color and finally convert hex to rgba
    if ( false === strpos( $color, \'rgba\' ) ) {
        return sanitize_hex_color( $color );
    }

    // By now we know the string is formatted as an rgba color so we need to further sanitize it.
    $color = str_replace( \' \', \'\', $color );
    sscanf( $color, \'rgba(%d,%d,%d,%f)\', $red, $green, $blue, $alpha );
    return \'rgba(\'.$red.\',\'.$green.\',\'.$blue.\',\'.$alpha.\')\';}