添加设置，指定sanitize_callback:

$wp_customize->add_setting(
    \'my_input\',
    array(
        \'default\' => \'100.00\',
        \'sanitize_callback\' => \'sanitize_float\',
    )
);

添加控件：

$wp_customize->add_control(
    \'my_input\',
    array(
        \'label\' => \'Please enter a number:\',
        \'section\' => \'my_section\',
        \'type\' => \'number\',
        \'input_attrs\' => array(
            \'min\' => \'0.01\', \'step\' => \'0.01\', \'max\' => \'10000\',
          ),
    )
);

创建执行消毒的功能-filter_var 应返回经过消毒的浮子或false:

function sanitize_float( $input ) {
    return filter_var($input, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
}

这是未经测试的，但应该让您开始-当然，它可以调整为清理整数。

[改编自http://themefoundation.com/wordpress-theme-customizer/]