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<?php
function toFixLen($str,$len){ //¹Ì¶¨³¤¶È×Ö·û´®µÄ½ØÈ¡
if($len>=strlen($str)||!$len) return $str;
$len-=3;
$tempstr1 = substr($str,0,$len); //½ØÈ¡×Ö·û´®
$tempstr2 = preg_replace('/([\x81-\xff]+)$/ms','',$tempstr1,1); //È¥µô½áβµÄÁ¬Ðøºº×Ö×Ö·û
if(!is_int((strlen($tempstr1)-strlen($tempstr2))/2)){ //È¥µôµÄ×Ö·ûÎªÆæÊý?
$tempstr1 = substr($str,0,$len-1);
}
return $tempstr1."…";
}
?>
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