1、常常会遇到中文字符串截取问题,比如说新闻列表页面需要新闻内容简介,这就要用到字符串截取了。下面我就给大家分享一个已经封装好的字符串截取函数。
函数解释:
msubstr($str, $start=0, $length, $charset=”utf-8″, $suffix=true)
$str:要截取的字符串
$start=0:开始位置,默认从0开始
$length:截取长度
$charset=”utf-8″:字符编码,默认UTF-8
$suffix=true:是否在截取后的字符后面显示省略号,默认true显示,false为不显示
模版使用:{$vo.title|msubstr=0,5,'utf-8',false}
2、把如下代码粘贴到fastadmin核心包的/application/common.php 的最后便可在html模型里直接使用。
function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true)
{
if(function_exists("mb_substr")){
if($suffix)
return mb_substr($str, $start, $length, $charset)."...";
else
return mb_substr($str, $start, $length, $charset);
}
elseif(function_exists('iconv_substr')) {
if($suffix)
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 $slice;
}
3、列表页模板里使用:
<td>{$item.fanwei|msubstr=0,50,'utf-8',true}</td>
笔记:
{if condition="strpos($_SERVER['HTTP_USER_AGENT'],'oogle')!== false||strpos($_SERVER['HTTP_USER_AGENT'],'aidu')!==false||strpos($_SERVER['HTTP_USER_AGENT'],'ogou')!==false"}
{else /}友情链接: {cms:diydatalist diyform="1" id="item" row="50"}
<a href="{$item.website}" target="_blank" title="{$item.title}">{$item.title}</a>
{/cms:diydatalist}
{/if}


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