function unicode_decode($name){	 // 转换编码，将Unicode编码转换成可以浏览的utf-8编码		$pattern = '/([\w]+)|(\\\u([\w]{4}))/i';		preg_match_all($pattern, $name, $matches);		if (!empty($matches)){			$name = '';			for ($j = 0; $j < count($matches[0]); $j++){				$str = $matches[0][$j];				if (strpos($str, '\\u') === 0){					$code = base_convert(substr($str, 2, 2), 16, 10);					$code2 = base_convert(substr($str, 4), 16, 10);					$c = chr($code).chr($code2);					$c = iconv('UCS-2', 'UTF-8', $c);					$name .= $c;				}else{					$name .= $str;				}			}		}		return $name;	}	function unicode_encode($name){		$name = iconv('UTF-8', 'UCS-2', $name);		$len = strlen($name);		$str = '';		//for ($i = 0; $i < $len – 1; $i = $i + 2){		for($i=0;$i<$len-1;$i=$i+2){			$c = $name[$i];			$c2 = $name[$i + 1];			if (ord($c) > 0){    // 两个字节的文字				$str .= '\u'.base_convert(ord($c), 10, 16).base_convert(ord($c2), 10, 16);			}else{				$str .= $c2;			}		}		return $str;	}