简单的字符串截取方法,支持中文和其他编码,传入相对应的参数直接调用就可以了
/**<BR> * 字符串截取,支持中文和其他编码<BR> * @static<BR> * @access public<BR> * @param string $str 需要转换的字符串<BR> * @param string $start 开始位置<BR> * @param string $length 截取长度<BR> * @param string $charset 编码格式<BR> * @param string $suffix 截断显示字符<BR> * @return string<BR> */<BR>func<em style="color:transparent">本文来源gao.dai.ma.com搞@代*码#网</em><a>搞代gaodaima码</a>tion msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true) {<BR> if(function_exists("mb_substr"))<BR> $slice = mb_substr($str, $start, $length, $charset);<BR> elseif(function_exists('iconv_substr')) {<BR> $slice = iconv_substr($str,$start,$length,$charset);<BR> if(false === $slice) {<BR> $slice = '';<BR> }<BR> }else{<BR> $re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\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> }<BR> return $suffix ? $slice.'...' : $slice;<BR>}<BR>