如何用php得到中文字的长度?答:function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true){ if(function_exists("mb_substr"))return mb_substr($str, $start, $length, $charset);elseif(function_exists('iconv_substr')) { return iconv_substr($str,$start,$length,$charset);} re['utf-8'] ...