上山打老虎 发表于 2021-7-16 14:36:39

Wordpress 显示主题图片的实现代码

代码如下:
<?php

//Put this in functions.php

function get_primary_image($id, $size){
      $featured = wp_get_attachment_image_src( get_post_thumbnail_id($id), $size, false);
      if($featured){
                $childURL = $featured['0'];
      }else{
                $children = get_children(array('post_parent' => $id, 'post_type' => 'attachment', 'post_mime_type' => 'image', 'numberposts' => 1));
                reset($children);
                $childID = key($children);
                //$childURL = wp_get_attachment_url($childID);
                $childArray = wp_get_attachment_image_src($childID, $size, false);
                $childURL = $childArray['0'];
                if(empty($childURL)){
                        $childURL = get_bloginfo('template_url')."/images/default.png";
                }
      }
      return($childURL);
}


//Run this in the loop (or any place you'd like - as long as you have an ID to feed it..)
//First argument is the ID..
//Second argument is the size.. It'll handle 'large', 'medium', 'thumbnail' or even

'array(100, 100)'..
get_primary_image(get_the_ID(), 'large');

?>

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