ThinkPHP 模板substr的截取字符串函数

在Common/function.php加上以下代码

/**

** 截取中文字符串

**/

function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true){

if(function_exists("mb_substr")){

$slice= mb_substr($str, $start, $length, $charset);

}elseif(function_exists('iconv_substr')) {

$slice= iconv_substr($str,$start,$length,$charset);

}else{

$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));

}

$fix='';

if(strlen($slice) < strlen($str)){

$fix='...';

}

return $suffix ? $slice.$fix : $slice;

}

前端页面需要截取字符串时

{$v.title|msubstr=0,5}

/****************************案例****************************/

//新闻列表

public function NewsList(){

$this->assign('title','news');

$p = I('page',1);

$listRows = 10;

$News = M('news');

$info = $News->field('id,title,subtitle,publish_date,img,content')->where(array('type'=>'news','status'=>'1'))->order('flag desc,sort_no desc')->page($p,$listRows)->select();

$this->assign('news',$info);

$count = $News->where(array('type'=>'news','status'=>'1'))->count();

$Page = new Page($count,$listRows);

$show = $Page->show();

$this->assign('page',$show);

//var_dump($info);

$this->display();

}

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