在WordPress管理区域的Customizer部分，我添加了自定义设置和自定义控件。我现在要打印此控件的值。我该怎么做？用于添加自定义设置/控件的代码如下（来自WordPress customize_register() page):

function themename_customize_register($wp_customize){
        $wp_customize->add_setting( \'test_setting\', array(
            \'default\'        => \'value_xyz\',
            \'capability\'     => \'edit_theme_options\',
            \'type\'           => \'option\',
        ));
        $wp_customize->add_control( \'test_control\', array(
            \'label\'      => __(\'Text Test\', \'themename\'),
            \'section\'    =>  \'spacious_slider_number_section1\',
            \'settings\'   => \'test_setting\',
        ));
}
add_action(\'customize_register\', \'themename_customize_register\');

文本输入字段在自定义程序中按预期显示(screenshot). 现在，我想在加载页面的PHP模板时回显这个文本输入字段的值。但当我尝试这样做时，会返回一个空值。添加到页面PHP模板中的代码如下：

echo get\\u theme\\u mod（\'test\\u setting\'）；

此外，类型似乎是布尔型的（而不是我所期望的字符串），即。gettype(get_theme_mod(\'test_setting\'); 退货boolean.

最后，如果我打印get_theme_mods(), 我的自定义设置/控件未显示在数组中。

function themename_customize_register($wp_customize){
        $wp_customize->add_setting( \'test_setting\', array(
            \'default\'        => \'value_xyz\',
            \'capability\'     => \'edit_theme_options\',
            \'type\'           => \'theme_mod\',
        ));
        $wp_customize->add_control( \'test_control\', array(
            \'label\'      => __(\'Text Test\', \'themename\'),
            \'section\'    =>  \'spacious_slider_number_section1\',
            \'settings\'   => \'test_setting\',
        ));
}
add_action(\'customize_register\', \'themename_customize_register\');

get_theme_mod( \'test_setting\' );