<?PHP$str="这个字符比较长SO LONG";$Short_Str=showShort($str,4);//截取前面4个汉字,结果为:这个字符...Echo "$Short_Str";Function csubstr($str,$start,$len){$strlen=strlen($str);$clen=0;for($i=0;$i<$strlen;$i++,$clen++){if ($clen>=$start+$len)break;if(ord(substr($str,$i,1))>0xa0){if ($clen>=$start)$tmpstr.=substr($str,$i,2);$i++;}else{if ($clen>=$start)$tmpstr.=substr($str,$i,1);}}

return $tmpstr;}Function showShort($str,$len){$tempstr = csubstr($str,0,$len);if ($str<>$tempstr)$tempstr .= "..."; //要以什么结尾,修改这里就可以.

return $tempstr;}?>

使用方法:

1.将以上代码另存为dovia.php2.页面引入:<?php include("dovia.php"); ?>2.套用函数输出目标:<?php $str=$row_rs['N_Title'];$Short_Str=showShort($str,12);echo "$Short_Str";?>