为什么这个短代码在页面上显示两次？

Question

我正在尝试在页面上添加评级简码，例如 [rating rating="3"]，但问题是它显示了两次。

function rating_function($atts) {
    extract(shortcode_atts(array(
    'rating' => 5, 
    'type' => 'rating', 
    'number' => 0 
  ), $atts));
return wp_star_rating(array('rating' => $rating, 'type' => $type, 'number' => $number));
}
add_shortcode('rating', 'rating_function');

Answer 1

您两次看到评级的原因是因为默认情况下 wp_star_rating() 函数回显生成的评级 HTML 标记。来自文档：

$args (array) (Optional) Array of star ratings arguments.

'rating' (int|float) The rating to display, expressed in either a 0.5 rating increment, or percentage. Default 0.

'type' (string) Format that the $rating is in. Valid values are 'rating' (default), or, 'percent'. Default 'rating'.

'number' (int) The number of ratings that makes up this rating. Default 0.

'echo' (bool) Whether to echo the generated markup. False to return the markup instead of echoing it. Default true.

Default value: array()

（强调我的。）

在短代码中使用此函数时，必须确保函数 returns 是 HTML 标记，而不是 echo它：

function rating_function($atts) {
    require_once(ABSPATH . 'wp-admin/includes/template.php');

    extract(shortcode_atts(array(
        'rating' => 5, 
        'type' => 'rating', 
        'number' => 0 
    ), $atts));

    return wp_star_rating(array(
        'rating' => $rating,
        'type' => $type,
        'number' => $number,
        'echo' => false
    ));
}
add_shortcode('rating', 'rating_function');

为什么这个短代码在页面上显示两次？

Why is this shortcode displayed twice on the page?

wordpress

shortcode