首先在common.php檔案寫下如下函式
/** *+---------------------------------------------------------- * 字串截取，支持中文和其他編碼 *+---------------------------------------------------------- * @static * @access public *+---------------------------------------------------------- * @param string $str 需要轉換的字串 * @param string $length 截取長度 * @param string $start 開始位置 * @param string $charset 編碼格式 * @param string $suffix 截斷顯示字符 *+---------------------------------------------------------- * @return string *+---------------------------------------------------------- */ function msubstr($str, $length, $start=0, $charset="utf-8", $suffix=false){ if(function_exists("mb_substr")){ $slice=mb_substr($str, $start, $length, $charset); if($suffix){ if(mb_strlen($str,'utf-8')>$length){ return $slice."..."; }else{ return $slice; } }else{ return $slice; } }elseif(function_exists('iconv_substr')){ if($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) { if(strlen($slice)>$length){ return $slice."…"; }else{ return $slice; } } return $slice; }
函式創建完成，就可以在前端模板直接使用了
{$v.title|msubstr= 50,0,‘utf-8’,true}
這樣就可以截取固定長度的文字了
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