我创建了一个快捷码，用于向其他帖子显示自定义的单个自定义帖子类型。代码如下：

function clients_shortcode(){

    $output = \'\';
    //Attributes
    $defaults = array(
        \'c_name\'        => \'\',
        \'c_session\' => \'\'
    );

    $atts = shortcode_atts($defaults, $atts);
    $name = $atts[\'c_name\'];
    $session = $atts[\'c_session\'];

    $args = array(

        \'post_type\'     => \'client\',
        \'meta_query\'    => array(
            \'relation\'      => \'AND\',
            array(
                \'key\'       => \'client_name\',
                \'value\'     => $name,
                \'compare\'   => \'=\'  
            ),
            array(
                \'key\'       => \'session_number\',
                \'value\'     => $session,
                \'compare\'   => \'=\'
            )
        )

    );

    $client_sess = new WP_Query ($args);

    if($client_sess->have_posts()): while($client_sess->have_posts()): $client_sess -> the_post();

    $output .= \'<h1>\' . get_the_title() . \'</h1>\';
    $output .= \'<div>\' . get_field(\'session_hypnosis\') . \'</div>\';
    $output .= \'<div>\' . get_field(\'session_video\') . \'</div>\';

    endwhile;
    endif;
    wp_reset_query();

    return $output;
}

add_shortcode(\'clients\', \'clients_shortcode\');

输出没有显示任何内容，但是如果我像这样将代码更改为static

$args = array(
        \'post_type\'     => \'client\',
        \'meta_query\'    => array(
            \'relation\'      => \'AND\',
            array(
                \'key\'       => \'client_name\',
                \'value\'     => \'Nayan\',
                \'compare\'   => \'=\'  
            ),
            array(
                \'key\'       => \'session_number\',
                \'value\'     => 1,
                \'compare\'   => \'=\'
            )
        )

    );

然后，短代码显示客户端Nayan和会话1的帖子。但是，当我将参数传递给shortcode时，它不起作用。

注意：我使用ACF生成自定义字段。

提前感谢

$atts = shortcode_atts($defaults, $atts);

function clients_shortcode( $atts ) {