Excerpts personalizados

excerpts.php

function excerpt($limit) {       $excerpt = explode(' ', get_the_excerpt(), $limit);       if (count($excerpt)>=$limit) {         array_pop($excerpt);         $excerpt = implode(" ",$excerpt).'...';       } else {         $excerpt = implode(" ",$excerpt);       }        $excerpt = preg_replace('`\[[^\]]*\]`','',$excerpt);       return $excerpt;     }      function content($limit) {       $content = explode(' ', get_the_content(), $limit);       if (count($content)>=$limit) {         array_pop($content);         $content = implode(" ",$content).'...';       } else {         $content = implode(" ",$content);       }        $content = preg_replace('/\[.+\]/','', $content);       $content = apply_filters('the_content', $content);        $content = str_replace(']]>', ']]>', $content);       return $content;     }          

<?php echo excerpt(25); ?>