解决smarty中truncate截取中文字符串乱码问题

首先进入到smarty包下的plugins,复制一份modifier.truncate.php,并重命名为modifier.truncate_cn.php,把其中的smarty_modifier_truncate函数替换为下面代码:

function smarty_modifier_truncate_cn($string, $length = 80, $etc = '...', $code = 'UTF-8') {

    if ($length == 0)

        return '';

    if ($code == 'UTF-8') {

        $pa = "/[x01-x7f]|[xc2-xdf][x80-xbf]|xe0[xa0-xbf][x80-xbf]|[xe1-xef][x80-xbf][x80-xbf]|xf0[x90-xbf][x80-xbf][x80-xbf]|[xf1-xf7][x80-xbf][x80-xbf][x80-xbf]/";

    } else {

    $pa = "/[x01-x7f]|[xa1-xff][xa1-xff]/";

    }

    preg_match_all($pa, $string, $t_string);

    if (count($t_string[0]) > $length)

        return join('', array_slice($t_string[0], 0, $length)) . $etc;

    return join('', array_slice($t_string[0], 0, $length)) . $etc;

}

在模板中使用

{$string|truncate_cn:”10″:”…”}
第一个为截取的字符长度,第二个为后缀字符

如何出现报错:

错误:(secure mode) modifier truncate_cn is not allowed
这主要是你启用了smarty的$security功能
解决方法: 给smarty配置文件中加入允许使用的函数
$smarty->security_settings['MODIFIER_FUNCS'] = array('truncate_cn');

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