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对于thinkphp的截取字符串函数无法显示省略号的情况，可以参考如下解决方法：
打开common/extend.php页面，修改msubstr函数为：
-
- function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true)
- {
- if(function_exists("mb_substr")) {
- if($suffix)
- {
- if($str==mb_substr($str, $start, $length, $charset))
- {
- return mb_substr($str, $start, $length, $charset);
- }
- else
- {
- return mb_substr($str, $start, $length, $charset)."...";
- }
- } // bbs.it-home.org
- else
- {
- return mb_substr($str, $start, $length, $charset);
- }
- }
- elseif(function_exists('iconv_substr')) {
- if($suffix)
- {
- if($str==iconv_substr($str,$start,$length,$charset))
- {
- return iconv_substr($str,$start,$length,$charset);
- }
- else
- {
- return iconv_substr($str,$start,$length,$charset)."...";
- }
- }
- else
- {
- return iconv_substr($str,$start,$length,$charset);
- }
- }
- $re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
- $re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
- $re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
- $re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
- preg_match_all($re[$charset], $str, $match);
- $slice = join("",array_slice($match[0], $start, $length));
- if($suffix) return $slice."…";
- return $slice;
- }
使用以上函数在截取字符串时，就可以显示省略号了，大家可以测试下看看效果如何。
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