wp-custom-excerpt-length.php

<?php

/** 
 * Filter the except length to any specified length of words. 
 * 
 * @param string $content the content 
 * @param int $length Excerpt length. 
 * @return int (Maybe) modified excerpt length. 
 */

function catchy_labs_custom_excerpt($content, $limit) {
    // Remove HTML tags
    $content = strip_tags($content);
    
    // Remove URLs
    $content = preg_replace('/\bhttps?:\/\/\S+/i', '', $content);

    // Split the content into words and limit the number of words
    $excerpt = explode(' ', $content, $limit);

    if (count($excerpt) >= $limit) {
        array_pop($excerpt);
        $excerpt = implode(" ", $excerpt) . ' [...]';
    } else {
        $excerpt = implode(" ", $excerpt);
    }

    // Remove any remaining shortcode-like content
    $excerpt = preg_replace('`\[[^\]]*\]`', '', $excerpt);

    return $excerpt;
}


?>

<div class="the-excerpt">
  <p><?php echo catchy_labs_custom_excerpt( get_the_content(), 45 ); ?></p>
</div>