我正在使用WordPress的以下代码\'get_tags Function Reference page

    $tags = get_tags();
    $html = \'<div class="post_tags">\';
    foreach ($tags as $tag){
          $tag_link = get_tag_link($tag->term_id);      
          $html .= "<a href=\'{$tag_link}\' title=\'{$tag->name} Tag\' class=\'{$tag->slug}\'>";
          $html .= "{$tag->name}</a>";}
    $html .= \'</div>\';
    echo $html;

 define(\'xyz_city\',\'New York\');

    title=\'{$tag->name} Tag\'

    title=\'{$tag->name} [insert xyz_city]\'

    <?php echo xyz_city ;?>