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Wordpress 显示主题图片的实现代码

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复制代码代码如下:
?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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