我正在尝试自定义[库]快捷码的输出，以包含此插件的评论计数：Facebook Comments for WordPress plugin
我找到了一个function by Zack Austin （如下所示）从Facebook图表中检索评论数。此外，我还发现了一块code by t31os （如下所示）允许我自定义[库]快捷码的输出。因此，我试图将Facebook评论计数功能合并到可定制的库代码中。
现在，当我将这两段代码插入到函数中时。并从我的另一个页面模板中调用该函数(<?php echo fb_comment_count(); ?>), 它工作得很好。
但是，当我尝试从函数内部调用函数时。php，无论有多少条评论，我都会得到一个“0”。
我尝试在fb\\u comment\\u count函数中调试$post的值，它生成以下内容：
id = 818 id = 818 id = 818 id = 818 id = 818 id = 818 id = 818 id = 818
这是错误的，因为图像所在的每个附件页的每个ID都应该不同。818是整个库页面本身的id。我想这就是为什么我的评论数一直为“0”，因为库页面（id 818）本身没有评论。
为了更好地了解我正在尝试做什么，这里有一个图库页面的模板。每个图像都链接到各自的附件页。带有数字的白色框是注释计数。
如果有人能帮我找出如何检索图库中每个图像的正确评论数，我将不胜感激。非常感谢。
下面是Zack Austin的fb\\u comment\\u count函数。
// FB Comment Count (by Zack Austin)
function fb_comment_count($link = \'link\') {
global $post;
$url = \'https://graph.facebook.com/\';
$posturl = get_permalink($post->ID);
$url .= $posturl;
$filecontent = wp_remote_retrieve_body(wp_remote_get($url, array(\'sslverify\'=>false)));
$json = json_decode($filecontent);
$count = $json->comments;
if ($count == 0 || !isset($count)) {
$count = 0;
}
$comments = $count;
if ($count == 1) {
$comments .= \'\';
}
elseif ($count == 0) {
$comments = \'0\';
}
elseif ($count > 1) {
$comments .= \'\';
}
if ($link == \'nolink\') {
return $comments;
}
else {
return \'<a href="\'.$posturl.\'#comments" title="Comments for \'.$post->post_title.\'">\'.$comments.\'</a>\';
}
}
这里是自定义库代码，我在这里调用上面的fb\\u comment\\u count函数（从底部开始大约22行）。下面的代码和上面的代码都在我的函数中。php文件。
// Custom Gallery
add_filter( \'post_gallery\', \'my_post_gallery\', 10, 2 );
function my_post_gallery( $output, $attr) {
global $post, $wp_locale;
static $instance = 0;
$instance++;
// We\'re trusting author input, so let\'s at least make sure it looks like a valid orderby statement
if ( isset( $attr[\'orderby\'] ) ) {
$attr[\'orderby\'] = sanitize_sql_orderby( $attr[\'orderby\'] );
if ( !$attr[\'orderby\'] )
unset( $attr[\'orderby\'] );
}
extract(shortcode_atts(array(
\'order\' => \'ASC\',
\'orderby\' => \'menu_order ID\',
\'id\' => $post->ID,
\'itemtag\' => \'dl\',
\'icontag\' => \'dt\',
\'captiontag\' => \'dd\',
\'columns\' => 3,
\'size\' => \'thumbnail\',
\'include\' => \'\',
\'exclude\' => \'\'
), $attr));
$id = intval($id);
if ( \'RAND\' == $order )
$orderby = \'none\';
if ( !empty($include) ) {
$include = preg_replace( \'/[^0-9,]+/\', \'\', $include );
$_attachments = get_posts( array(\'include\' => $include, \'post_status\' => \'inherit\', \'post_type\' => \'attachment\', \'post_mime_type\' => \'image\', \'order\' => $order, \'orderby\' => $orderby) );
$attachments = array();
foreach ( $_attachments as $key => $val ) {
$attachments[$val->ID] = $_attachments[$key];
}
} elseif ( !empty($exclude) ) {
$exclude = preg_replace( \'/[^0-9,]+/\', \'\', $exclude );
$attachments = get_children( array(\'post_parent\' => $id, \'exclude\' => $exclude, \'post_status\' => \'inherit\', \'post_type\' => \'attachment\', \'post_mime_type\' => \'image\', \'order\' => $order, \'orderby\' => $orderby) );
} else {
$attachments = get_children( array(\'post_parent\' => $id, \'post_status\' => \'inherit\', \'post_type\' => \'attachment\', \'post_mime_type\' => \'image\', \'order\' => $order, \'orderby\' => $orderby) );
}
if ( empty($attachments) )
return \'\';
if ( is_feed() ) {
$output = "\\n";
foreach ( $attachments as $att_id => $attachment )
$output .= wp_get_attachment_link($att_id, $size, true) . "\\n";
return $output;
}
$itemtag = tag_escape($itemtag);
$captiontag = tag_escape($captiontag);
$columns = intval($columns);
$itemwidth = $columns > 0 ? floor(100/$columns) : 100;
$float = is_rtl() ? \'right\' : \'left\';
$selector = "gallery-{$instance}";
$output = apply_filters(\'gallery_style\', "
<style type=\'text/css\'>
#{$selector} {
margin: auto;
}
#{$selector} .gallery-item {
float: {$float};
margin-top: 10px;
text-align: center;
width: {$itemwidth}%; }
#{$selector} img {
border: 2px solid #cfcfcf;
}
#{$selector} .gallery-caption {
margin-left: 0;
}
</style>
<!-- see gallery_shortcode() in wp-includes/media.php -->
<div id=\'$selector\' class=\'gallery galleryid-{$id}\'>");
$i = 0;
foreach ( $attachments as $id => $attachment ) {
$link = isset($attr[\'link\']) && \'file\' == $attr[\'link\'] ? wp_get_attachment_link($id, $size, false, false) : wp_get_attachment_link($id, $size, true, false);
$output .= "<{$itemtag} class=\'gallery-item\'>";
$output .= "<span class=\'photos-comment-number-wrap\'><span class=\'comment-number\'>". fb_comment_count() ."</span></span>";
$output .= "
<{$icontag} class=\'gallery-icon\'>
$link
</{$icontag}>";
if ( $captiontag && trim($attachment->post_excerpt) ) {
$output .= "
<{$captiontag} class=\'gallery-caption\'>
" . wptexturize($attachment->post_excerpt) . "
</{$captiontag}>";
}
$output .= "</{$itemtag}>";
if ( $columns > 0 && ++$i % $columns == 0 )
$output .= \'<br style="clear: both" />\';
}
$output .= "
<br style=\'clear: both;\' />
</div>\\n";
return $output;
}
