ThinkPHP 模板substr的截取字符串函数详解

2024-05-04 22:49:47

字体：大中小

来源：转载

供稿：网友

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(); }