Typecho和WordPress的自动截断代码

<?php echo mb_strimwidth(strip_tags(apply_filters('the_content', $post->post_content)), 0, 300,"..."); ?>

<?php

/* Auto-excerpt by winy */
function winyexcerpt($max_char = 200, $more_text = '...', $limit_type = 'content') {

    if ($limit_type == 'title') { $text = get_the_title(); }
    else { $text = get_the_content(); }
    $text = apply_filters('the_content', $text);
    $text = strip_tags(str_replace(']]>', ']]>', $text));
	$text = trim($text);
     if (strlen($text) > $max_char) {
		 $text = substr($text, 0, $max_char+1);
         $text = utf8_conver($text);
		 $text = str_replace(array("\r", "\n"), ' ', $text);
		 $text .= $more_text;
		 if ($limit_type == 'content'){
		 $text = "<p>".$text."</p>";
         $text .= "<div class='readmore'><a href='".get_permalink()."' title='查看全文点击此处' rel='nofollow'>继续阅读</a></div>";
		 }
        echo $text;
    } else {
		 if ($limit_type == 'content'){$text = "<p>".$text."</p>";}
        echo $text;
    }
}

function utf8_conver($str) {
        $len = strlen($str);
        for ($i=strlen($str)-1; $i>=0; $i-=1){
                $hex .= ' '.ord($str[$i]);
                $ch = ord($str[$i]);
        if (($ch & 128)==0) return(substr($str,0,$i));
                if (($ch & 192)==192) return(substr($str,0,$i));
        }
        return($str.$hex);
}

<p><?php $this->excerpt(200, '...'); ?><a href="<?php $this->permalink() ?>" rel="bookmark" title="详细阅读关于<?php $this->title(); ?>">阅读全文...</a></p>