remove empty paragraphs from the_content?

Question

remove empty paragraphs from the_content?

mathiregister

2021年1月4日 22:37

Hey guys, I simply want to prevent the creation of empty paragraphs in my wordpress post. That happens quite often when trying to manually space content.

I don't know why this doesn't take effect?

/*Remove empty paragraph tags from the_content*/
function removeEmptyParagraphs($content) {

    /*$pattern = "/p[^]*\\/p[^]*/";   
    $content = preg_replace($pattern, '', $content);*/
    $content = str_replace("p/p","",$content);
    return $content;
}

add_filter('the_content', 'removeEmptyParagraphs');

edit/update:

seems like the problem is this:

function qanda($content) {

    // filters for [q=some question] and [a=some answer]
    // wraps it inside of div class="qanda"div class="question" /divdiv class="answer" /div/div
    $content = preg_replace('/\[q=(.+?)].+?\[a=(.+?)]/is', 'div class="qanda"div class="question"$1/divdiv class="answer"$2/div/div', $content);

    return $content;
}

add_filter('the_content', 'qanda');

i did this function myself to filter for a kind of shortcode pattern in my posts and pages. Even though in my backend the post is completely done without paragraphs and unnecessary spacings the outcome looks like this:

div class="entry"

    p/p
    div class="qanda".../div
    p/p
    p/p
    div class="qanda".../div
    p/p
    p/p
    div class="qanda".../div

/div

any idea where this empty p's come from?

Topic wp-autop functions filters Wordpress

Category Web

pjk_ok · Accepted Answer · 2021年1月4日 22:37

If you are getting an empty  tag at the top of your page or post, it is usually caused by wrapping the <?php the_content();?> in paragraph tags.

PROBLEM

This is what causes the stray  tag at the top of the page/post:

<?php the_content();?>

SOLUTION

If you remove the  tags and only have the template tag, you'll solve the problem.

<?php the_content();?>

Shashank · Accepted Answer · 2018年9月19日 11:44

In order to have only html content without

tags we can use the following loop to out put only the html without formatting of the post or page

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<?php the_title(); ?>
<?php echo $post->post_content; ?>
<?php endwhile; endif; ?>

kater louis · Accepted Answer · 2017年12月6日 10:33

Same approach than 2 answers before me, but an updated regex, because his didn't work for me.

the regex: /(?:\s| )*?<\/p>/i (non capture group looking for any number of either whitespace or  s inside p-tag, all case insenstive.

add_filter('the_content', function($content) {
    $content = force_balance_tags($content);
    return preg_replace('/<p>(?:\s|&nbsp;)*?<\/p>/i', '', $content);
}, 10, 1);

Christian Isak · Accepted Answer · 2017年5月15日 10:33

1

Christian Isak answered at 2017年5月15日 10:33

If you have  tags with whitespace in the content, go to your post or page an edit it not in visual style.

you would be find some   in there.. Delete it and the empty  tags will disappear.

at least three characters · Accepted Answer · 2015年9月30日 13:24

1

at least three characters answered at 2015年9月30日 13:24

Simply use CSS

p:empty {
  display: none;
}

Bainternet · Accepted Answer · 2014年5月7日 17:57

WordPress will automatically insert  and  tags which separate content breaks within a post or page. If, for some reason, you want or need to remove these, you can use either of the following code snippets.

To completely disable the wpautop filter, you can use:

remove_filter('the_content', 'wpautop');

If you still want this to function try adding a later priority value to your filter something like:

add_filter('the_content', 'removeEmptyParagraphs',99999);

user2914440 · Accepted Answer · 2014年5月7日 13:37

This will recursively remove all the empty html tags from the string

add_filter('the_content', 'remove_empty_tags_recursive', 20, 1);
function remove_empty_tags_recursive ($str, $repto = NULL) {
         $str = force_balance_tags($str);
         //** Return if string not given or empty.
         if (!is_string ($str)
         || trim ($str) == '')
        return $str;

        //** Recursive empty HTML tags.
       return preg_replace (

              //** Pattern written by Junaid Atari.
              '/<([^<\/>]*)>([\s]*?|(?R))<\/\1>/imsU',

             //** Replace with nothing if string empty.
             !is_string ($repto) ? '' : $repto,

            //** Source string
           $str
);}

Pattern is taken from http://codesnap.blogspot.in/2011/04/recursively-remove-empty-html-tags.html

Michelle · Accepted Answer · 2012年5月22日 22:03

I know this is already marked 'solved' but just for reference, here's a function which does exactly what you want without having to add any markup to posts. Just put this in your theme's functions.php:

add_filter('the_content', 'remove_empty_p', 20, 1);
function remove_empty_p($content){
    $content = force_balance_tags($content);
    return preg_replace('#<p>\s*+(<br\s*/*>)?\s*</p>#i', '', $content);
}

This is from this gist: https://gist.github.com/1668216

David Faber · Accepted Answer · 2012年1月2日 10:00

I had the same problem you have. I just did a... let's say... not very beautiful solution, but it works and so far it's the only solution I have. I added a little JavaScript line. It needs jQuery, but I'm sure you can figure it out without.

This is my tiny JS:

$('p:empty').remove();

This works for me!

t31os · Accepted Answer · 2011年4月6日 12:40

You could just run your filter before that nasty wpautop hooks on and messes with the markup.

add_filter('the_content', 'qanda', 7 );

That way, you've already converted what you need to by the time it hooks on, which does help in some cases.

cwd · Accepted Answer · 2011年4月3日 14:40

I found this weird, but actually calling the_content() will insert paragraphs in the manner you describe. If you want the html code, basically like you entered it (the same as "view HTML" when editing), then use get_the_content() which returns the content without formatting and paragraph tags.

Since it returns it, make sure you use something like:

echo get_the_content();

See also: http://codex.wordpress.org/Function_Reference/get_the_content

remove empty paragraphs from the_content?

About