php文件和流

1.复制文件$fp=fopen('index.html','rb+');//读取index.html内容可读$block=fread($fp,4096);//读取index.html文件4096字节$url=fopen('haha.html','w');//打开或创建haha.html并写入fwrite($url,$block);//写入haha.html文件fclose($fp);//关闭流