Excluding/Removing Specific Tags in WordPress

<?php
$exclude_tags = array("tag1", "tag2", "tag3"); // Array of tags to be excluded by their slugs

$tags = get_the_tags($post->ID);
$separator = ', ';
$output = '';

if ($tags) {
    foreach ($tags as $tag) {
        if (!in_array($tag->slug, $exclude_tags)) { // If the tag slug is not included in the excluded tags
            $output .= '<a href="' . get_tag_link($tag->term_id) . '">' . $tag->name . '</a>' . $separator;
        }
    }
    echo trim($output, $separator);
}
?>

On the other hand, if you want to display a list of tags in a select box and need to exclude/remove specific tags, you can use code like the following:

<?php
$excluded_tag = array('tag1', 'tag2', 'tag3'); // Array of tags to be excluded by their slugs

$tags = get_tags();
$filtered_tags = array();

if ($tags) {
    foreach ($tags as $tag) {
        if (!in_array($tag->slug, $excluded_tag)) {
            $filtered_tags[] = $tag;
        }
    }
}

if (!empty($filtered_tags)) :
?>
<select onchange="document.location.href=this.options[this.selectedIndex].value;" class="custom-select form-control-sm">
    <?php foreach ($filtered_tags as $tag) : ?>
        <option value="<?php echo esc_url(get_tag_link($tag->term_id)); ?>"><?php echo esc_html($tag->name); ?></option>
    <?php endforeach; ?>
</select>
<?php endif; ?>

That’s it!

AEDI is based in Kurashiki, Okayama, and offers services such as web and development, WordPress development, multilingual website development, SEO, UI/UX design, graphic design for logos, flyers, posters, brochures, and catalogs, motion design and motion graphics, character design, and brand design and branding. Our job is not limited to merely creating websites or designing logos; we work from the perspective of brand design and branding to bring out the value of our client’s services and products and promote new value to the world.

If you are a client in Okayama, Kurashiki, or anywhere else considering website creation and design, please feel free to contact us. Let’s work together to create exciting and outstanding products!

References:

Exclude a specific tag from the get_the_tags list – WordPress Development Stack Exchange

Excluding/Removing Specific Tags – teratail