我有以下功能来显示我的摘录

  <?php function pietergoosen_custom_wp_trim_excerpt($text) {
global $post;
$raw_excerpt = $text;
if ( \'\' == $text ) {
    $text = get_the_content(\'\');

    $text = strip_shortcodes( $text );

    $text = apply_filters(\'the_content\', $text);
    $text = str_replace(\']]>\', \']]&gt;\', $text);

    //Add the allowed HTML tags separated by a comma.
    $allowed_tags = \'<p>,<a>,<em>,<strong>,<img src />,<audio><video>\';  
    $text = strip_tags($text, $allowed_tags);

    //Change the excerpt word count.
    $excerpt_word_count = 105; 
    $excerpt_length = apply_filters(\'excerpt_length\', $excerpt_word_count); 

    //Change the excerpt ending.
    $excerpt_end = \' <a href="\'. esc_url( get_permalink() ) . \'">\' . \'&hellip;\' . __( \'Read more about this article <span class="meta-nav">&rarr;</span>\', \'pietergoosen\' ) . \'</a>\'; 
    $excerpt_more = apply_filters(\'excerpt_more\', \' \' . $excerpt_end);

    $words = preg_split("/[\\n\\r\\t ]+/", $text, $excerpt_length + 1, PREG_SPLIT_NO_EMPTY);
    if ( count($words) > $excerpt_length ) {
        array_pop($words);
        $text = implode(\' \', $words);
        $text = $text . $excerpt_more;
    } else {
        $text = implode(\' \', $words);
    }
}
    return apply_filters(\'wp_trim_excerpt\', $text, $raw_excerpt);
}

remove_filter(\'get_the_excerpt\', \'wp_trim_excerpt\');
add_filter(\'get_the_excerpt\', \'pietergoosen_custom_wp_trim_excerpt\'); ?>

我的问题是<a> 标签仍然会被剥离。我举了几个例子，都建议添加<a> 标记到$allowed_tags, 但即使这样也不能解决问题。有什么建议吗？

add_filter( \'get_the_content_limit_allowedtags\', \'get_the_content_limit_custom_allowedtags\' );

function get_the_content_limit_custom_allowedtags() {
// Add custom tags to this string
return \'<script>,<style>,<br>,<em>,<i>,<ul>,<ol>,<li>,<a>\'; 
}