php smarty truncate UTF8乱码问题解决办法_php实例

估计不少玩smarty模板的小朋友都遇到过裁切乱码问题。特别是UTF8编码的。

以下代码保存为modifier.truncate2.php 存到smarty libs下的plugin目录下

然后裁剪的时候用$v->conte本文来源gaodai$ma#com搞$$代**码)网8搞代gaodaima码nt|truncate2:100

就搞定了。

如果不好用可能是缓存导致，请速度删除templates_c下的缓存文件（小编搞的时候遇到缓存问题。）

<?php<BR>/**<BR> * Smarty plugin<BR> * @package Smarty<BR> * @subpackage plugins<BR> */<br><br> <BR>/**<BR> * Smarty truncate modifier plugin<BR> *<BR> * Type:     modifier<br><BR> * Name:     truncate<br><BR> * Purpose:  Truncate a string to a certain length if necessary,<BR> *           optionally splitting in the middle of a word, and<BR> *           appending the $etc string or inserting $etc into the middle.<BR> * @link http://smarty.php.net/manual/en/language.modifier.truncate.php<BR> *          truncate (Smarty online manual)<BR> * @author   Monte Ohrt <BR> * @param string<BR> * @param integer<BR> * @param string<BR> * @param boolean<BR> * @param boolean<BR> * @return string<BR> */<BR>function smarty_modifier_truncate2( $string,$length = 80,$etc='...',$count_words = true ) {<BR> return $returnstr =substr_utf8($string, 0, $length).$etc; <br><br>}<br><br>function substr_utf8($str, $start=0, $length=-1, $return_ary=false) {<BR>    $len = strlen($str);if ($length == -1) $length = $len;<BR>    $r = array();<BR>    $n = 0;<BR>    $m = 0;<br><br>    for($i = 0; $i < $len; $i++) {<BR>        $x = substr($str, $i, 1);<BR>        $a = base_convert(ord($x), 10, 2);<BR>        $a = substr('00000000'.$a, -8);<BR>        if ($n < $start) {<BR>            if (substr($a, 0, 1) == 0) {<BR>            }elseif (substr($a, 0, 3) == 110) {<BR>                $i += 1;<BR>            }elseif (substr($a, 0, 4) == 1110) {<BR>                $i += 2;<BR>            }<BR>            $n++;<BR>        }else {<BR>            if (substr($a, 0, 1) == 0) {<BR>                $r[] = substr($str, $i, 1);<BR>            }elseif (substr($a, 0, 3) == 110) {<BR>                $r[] = substr($str, $i, 2);<BR>                $i += 1;<BR>            }elseif (substr($a, 0, 4) == 1110) {<BR>                $r[] = substr($str, $i, 3);<BR>                $i += 2;<BR>            }else {<BR>                $r[] = '';<BR>            }<BR>            if (++$m >= $length) {<BR>                break;<BR>            }<BR>        }<BR>    }<br><br>    return $return_ary ? $r : implode("",$r);<BR>}<BR>/* vim: set expandtab: */<BR>?>

samrty的插件体系还是比较智能而且容易修改的。

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