Removing h3s in excerpt output?

Question

I have a custom post type and the content looks something like this:

<h3>Description</h3>

The Production Assistant works closely with the production team to ensure that our games ship on time and at our very high standards. You will be a part of an international team and gain valuable insight into game development from a management perspective. Aside from production, you will also expand your knowledge of different disciplines such as, engineering, design, art, human resources, administration, and information technology.

The problem now is that the excerpt outputs something like this now:

<p>Description The Production Assistant</p>

How can I tell WordPress to trim the h3s and the text inside them?

Answer 1

There's a discussion on WP Support Forum that was related to your question. The pastebin constains the function stated in the other answer.

I've decreased the priority to 5 and it works on my test theme.

add_filter( 'get_the_excerpt', 'wp_strip_header_tags', 5);

If you want to target only <h3> you can use this regex:

$regex = '#(<h([3])[^>]*>)\s?(.*)?\s?(<\/h\2>)#';

Answer 2

Try with this by pasting these code inside functions.php file under your current theme.

function wp_strip_header_tags( $excerpt='' ) {
    $raw_excerpt = $excerpt;
    if ( '' == $excerpt ) {
        $excerpt = get_the_content(''); 
        $excerpt = strip_shortcodes( $excerpt );
        $excerpt = apply_filters('the_content', $excerpt);
        $excerpt = str_replace(']]>', ']]>', $excerpt);
    }

    $regex = '#(<h([1-6])[^>]*>)\s?(.*)?\s?(<\/h\2>)#';
    $excerpt = preg_replace($regex,'', $excerpt);

    $excerpt_length = apply_filters('excerpt_length', 55);
    $excerpt_more = apply_filters('excerpt_more', ' ' . '[...]');
    $excerpt = wp_trim_words( $excerpt, $excerpt_length, $excerpt_more );

    return apply_filters('wp_trim_excerpt', preg_replace($regex,'', $excerpt), $raw_excerpt);
}
add_filter( 'get_the_excerpt', 'wp_strip_header_tags', 99);

Answer 3

This is my solution on https://supersnelgezond.nl and it works like a charm:

function strip_heading_tags( $text ) {
$raw_excerpt = $text;
if ( '' == $text ) {
    //Retrieve the post content.
    $text = get_the_content(''); 
 
    //Strips the header tags and their content.
    $regex = '/<(h[1-6])>.*?<\/\1>/';
    $text = preg_replace($regex,'', $text);
    
    $text_length = apply_filters('text_length', 55);
    $text_more = apply_filters('text_more', '...');
    $text = wp_trim_words( $text, $text_length, $text_more );
    apply_filters('wp_trim_excerpt', preg_replace($regex,'', $text), $raw_excerpt);
    }
    return $text;
}
add_filter( 'get_the_excerpt', 'strip_heading_tags', 5);