[英]Hooking into comment_text() to add surrounding tag
Trying to hook into the function comment_text() supplied by Wordpress API to wrap the output of every comment into a <div>...</div>
container I am running into the following problem: 试图挂钩到Wordpress API提供的函数comment_text() ,将每个注释的输出包装到
<div>...</div>
容器中我遇到了以下问题:
Without my added filter the output of comment_text() looks like this: 没有我添加的过滤器, comment_text()的输出如下所示:
<p>Hello User!</p>
<p>Thank you for your comment.</p>
<p>Stefan</p>
Thats fine but as I said I would like to have it wrapped into a <div class="comment-text">...</div>
. 这很好,但正如我所说,我想将它包装成
<div class="comment-text">...</div>
。 As far as I know the correct way doing this would be in adding a filter to functions.php
of my theme and so I did: 据我所知,这样做的正确方法是在我的主题的
functions.php
中添加一个过滤器,所以我做了:
function stefan_wrap_comment_text($content) {
return "<div class=\"comment-text\">". $content ."</div>";
}
add_filter('comment_text', 'stefan_wrap_comment_text');
As I can see from the output the given filter works but it has a negative sideeffect to the first paragraph of the content as you can see in the following example. 正如我从输出中看到的那样,给定的过滤器可以工作,但它对内容的第一段产生负面影响,如下例所示。 The first paragraph should be
<p>Hello User!</p>
but looks like this: Hello User!
第一段应该是
<p>Hello User!</p>
但看起来像这样: Hello User!
. 。
<div class="comment-text">
Hello User!
<p>Thank you for your comment.</p>
<p>Stefan</p>
</div>
Any ideas or hints what I am doing wrong? 我有什么想法或暗示我做错了什么?
尝试降低功能的优先级,也许你先前有一些格式化功能。
add_filter('comment_text', 'stefan_wrap_comment_text', 1000);
Ouch, just stumbled over the file wp-includes/default-filters.php
and found out that there are several filters applied to the same function per default: 哎呀,偶然发现文件
wp-includes/default-filters.php
,发现wp-includes/default-filters.php
有几个过滤器应用于同一个函数:
add_filter( 'comment_text', 'wptexturize' );
add_filter( 'comment_text', 'convert_chars' );
add_filter( 'comment_text', 'make_clickable', 9 );
add_filter( 'comment_text', 'force_balance_tags', 25 );
add_filter( 'comment_text', 'convert_smilies', 20 );
add_filter( 'comment_text', 'wpautop', 30 );
The last filter with priority 30 calls the function wpautop() that is used for replacing double line breaks with <p>...</p>
. 优先级为30的最后一个过滤器调用函数wpautop() ,该函数用于用
<p>...</p>
替换双换行符。 Per default add_filter() registers new filters on priority 10. Changing my filter to be the last by choosing a higher number everything works fine. 默认情况下, add_filter()在优先级10上注册新的过滤器。通过选择更高的数字将我的过滤器更改为最后一个可以正常工作。
// This doesn't work because default priority is 10:
// add_filter('comment_text', 'stefan_wrap_comment_text');
// Add a lower priority (higher number) to apply this filter at last:
add_filter('comment_text', 'stefan_wrap_comment_text', 99);
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