thinkphp前臺模版字符串截取

ThinkPHP\Common\extend.php 中管理前臺模版的截取{$vons.title|msubstr=0,26}

原始的代碼是沒法使用截取支持….  因爲涉及到只有漢字檢測最爲準確

須要加入代碼讓他正常的分頁截取以後加入…

function msubstr($str, $start=0, $length, $charset=」utf-8″, $suffix=true)
{
if(strlen($str)/3>$length){
if(function_exists(「mb_substr」)){
return mb_substr($str, $start, $length, $charset).’…’;
}
elseif(function_exists(‘iconv_substr’)) {
return iconv_substr($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;
}else{
return $slice;
}
}
return $str;
}