THinkPHP 3.1.3 开发模板 截取中文字符串数据长度。网站功能开发,仿站,疑难编程,联系专业工程师 QQ467477957
thinkphp 模板如何截取中文字符串代码
项目开发中,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:<br>
msubstr($str, $start=0, $length, $charset=”utf-8″, $suffix=true)<br>
$str:要截取的字符串<br>
$start=0:开始位置,默认从0开始<br>
$length:截取长度<br>
$charset=”utf-8″:字符编码,默认UTF-8<br>
$suffix=true:是否在截取后的字符后面显示省略号,默认true显示,false为不显示<br>
模版使用:{$vo.title|msubstr=0,5,'utf-8',false}
把如下代码粘贴到thinkphp核心包的/common/functions.php 的最后便可在html模型里直接使用function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true) <br>
{ <br>
if(function_exists("mb_substr")){ <br>
if($suffix) <br>
return mb_substr($str, $start, $length, $charset)."..."; <br>
else<br>
return mb_substr($str, $start, $length, $charset); <br>
} <br>
elseif(function_exists('iconv_substr')) { <br>
if($suffix) <br>
return iconv_substr($str,$start,$length,$charset)."..."; <br>
else<br>
return iconv_substr($str,$start,$length,$charset); <br>
} <br>
$re['utf-8'] = "/[x01-x7f]|[xc2-xdf][x80-xbf]|[xe0-xef]<br>
[x80-xbf]{2}|[xf0-xff][x80-xbf]{3}/"; <br>
$re['gb2312'] = "/[x01-x7f]|[xb0-xf7][xa0-xfe]/"; <br>
$re['gbk'] = "/[x01-x7f]|[x81-xfe][x40-xfe]/"; <br>
$re['big5'] = "/[x01-x7f]|[x81-xfe]([x40-x7e]|xa1-xfe])/"; <br>
preg_match_all($re[$charset], $str, $match); <br>
$slice = join("",array_slice($match[0], $start, $length)); <br>
if($suffix) return $slice."…"; <br>
return $slice;<br>
}
开发模板里使用,<tr>
<br>
<td><b>简述:</b></td>
<br>
<td><label><br>
<br>
<textarea>{$data.brief|msubstr=0,36,'utf-8',false}</textarea><br>
<span>*简述,默认截取36个中文汉字的字符数</span><br>
</label></td>
<br>
</tr>
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