php 将帖子摘录截断为固定数量的字符

Posted 2021-05-05

<p class="excerpt"><?php echo get_excerpt();  ?></p>

<?php

function get_excerpt(){
   $excerpt = get_the_content();
   $excerpt = preg_replace(" (\[.*?\])",'',$excerpt);
   $excerpt = strip_shortcodes($excerpt);
   $excerpt = strip_tags($excerpt);
   $excerpt = substr($excerpt, 0, 50);
   $excerpt = substr($excerpt, 0, strripos($excerpt, " "));
   $excerpt = trim(preg_replace( '/\s+/', ' ', $excerpt));
   $excerpt = $excerpt.'... <a href="'.$permalink.'">more</a>';
return $excerpt;
}