PHP字符串截取，无乱码

	function cutString($string,$length=10,$ellipsis='...'){
		$array  = preg_split('/(?<!^)(?!$)/u',$string);
		$return = '';
		if( count($array) > $length ){
			foreach($array as $key=>$val){
				if( $length > $key)
				$return .= $val;
			}
			return $return.$ellipsis;
		}
		return $string;
	}
	
	$string = '中文名：“超文本预处理器”）是一种通用开源脚本语言';
	echo cutString($string,10);