php gzip压缩文件的基本读写

<meta http-equiv="content-type" content="text/html;charset=utf-8"><?php/*header ("content-type:text/html; charset:gbk");    header ("cache-control: must-revalidate");*/echo "把数据压缩后写入文件演示>>gzwrite";echo "<br>";$id = gzopen("test.gz", "w");gzwrite($id, "hello world\n");gzwrite($id,"1234567\n",5);gzclose($id);echo "读取压缩文件中解压后的字符演示>>gzgetc()";echo "<br>";$id = gzopen("test.gz", "w");gzputs($id,"this is test");gzclose($id);$id = gzopen("test.gz", "r");while ( $temp = gzgetc($id)) {# code...echo $temp."";}gzclose($id);echo "<br>";$id = gzopen("test.gz", "r");gzpassthru($id);//解压缩指针后的全部数据并在标准输出中显示出来?>