Wordpress 显示主题图片的实现代码

上山打老虎

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'); 
  
?>