文件夹就没试过了!
但一次上传多个文件就可以!
请看:
<form enctype="multipart/form-data" action="$PHP_SELF" method="post">
<input type="file" name="upfile[]"><BR>
<input type="file" name="upfile[]"><BR>
同上;
同上;
想上传多少个,就有多少个同上~!
</form>
<?
这里就可以用数组来取得上传的文件了!
如:upfile_name[0];//第一个文件
upfile_name[1];//第二个文件
如此类推!
但一次上传多个文件就可以!
请看:
<form enctype="multipart/form-data" action="$PHP_SELF" method="post">
<input type="file" name="upfile[]"><BR>
<input type="file" name="upfile[]"><BR>
同上;
同上;
想上传多少个,就有多少个同上~!
</form>
<?
这里就可以用数组来取得上传的文件了!
如:upfile_name[0];//第一个文件
upfile_name[1];//第二个文件
如此类推!
上传的功能我已经实现了，现在问的主要是如何上传一个文件夹？？？
思路当然不错，可如何让用户指定呢，只能用户手动输入吗，不可以通过浏览的方式选择。读取一个文件夹下的全部文件如何实现呢，有代码吗？
/* $Id: zip.lib.php,v 1.6 2002/03/30 08:244 loic1 Exp $ */
/**
* Zip file creation class.
* Makes zip files.
*
* Based on :
*
* <a href="http://www.zend.com/codex.php?id=535&single=1" target=_blank>http://www.zend.com/codex.php?id=535&single=1</a>
* By Eric Mueller <<a href="mailto:[email protected]">[email protected]</a>>
*
* <a href="http://www.zend.com/codex.php?id=470&single=1" target=_blank>http://www.zend.com/codex.php?id=470&single=1</a>
* by Denis125 <<a href="mailto:[email protected]">[email protected]</a>>
*
* a patch from Peter Listiak <<a href="mailto:[email protected]">[email protected]</a>> for last modified
* date and time of the compressed file
*
* Official ZIP file format: <a href="http://www.pkware.com/appnote.txt" target=_blank>http://www.pkware.com/appnote.txt</a>
*
* @access public
*/
class zipfile
{
/**
* Array to store compressed data
*
* @var array $datasec
*/
var $datasec = array(); /**
* Central directory
*
* @var array $ctrl_dir
*/
var $ctrl_dir = array(); /**
* End of central directory record
*
* @var string $eof_ctrl_dir
*/
var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; /**
* Last offset position
*
* @var integer $old_offset
*/
var $old_offset = 0;
/**
* Converts an Unix timestamp to a four byte DOS date and time format (date
* in high two bytes, time in low two bytes allowing magnitude comparison).
*
* @param integer the current Unix timestamp
*
* @return integer the current date in a four byte DOS format
*
* @access private
*/
function unix2DosTime($unixtime = 0) {
$timearray = ($unixtime == 0) ? getdate() : getdate($unixtime); if ($timearray['year'] < 1980) {
$timearray['year'] = 1980;
$timearray['mon'] = 1;
$timearray['mday'] = 1;
$timearray['hours'] = 0;
$timearray['minutes'] = 0;
$timearray['seconds'] = 0;
} // end if return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
} // end of the 'unix2DosTime()' method
/**
* Adds "file" to archive
*
* @param string file contents
* @param string name of the file in the archive (may contains the path)
* @param integer the current timestamp
*
* @access public
*/
function addFile($data, $name, $time = 0)
{
$name = str_replace('\\', '/', $name); $dtime = dechex($this->unix2DosTime($time));
$hexdtime = '\x' . $dtime[6] . $dtime[7]
. '\x' . $dtime[4] . $dtime[5]
. '\x' . $dtime[2] . $dtime[3]
. '\x' . $dtime[0] . $dtime[1];
eval('$hexdtime = "' . $hexdtime . '";'); $fr = "\x50\x4b\x03\x04";
$fr .= "\x14\x00"; // ver needed to extract
$fr .= "\x00\x00"; // gen purpose bit flag
$fr .= "\x08\x00"; // compression method
$fr .= $hexdtime; // last mod time and date // "local file header" segment
$unc_len = strlen($data);
$crc = crc32($data);
$zdata = gzcompress($data);
$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug
$c_len = strlen($zdata);
$fr .= pack('V', $crc); // crc32
$fr .= pack('V', $c_len); // compressed filesize
$fr .= pack('V', $unc_len); // uncompressed filesize
$fr .= pack('v', strlen($name)); // length of filename
$fr .= pack('v', 0); // extra field length
$fr .= $name; // "file data" segment
$fr .= $zdata; // "data descriptor" segment (optional but necessary if archive is not
// served as file)
$fr .= pack('V', $crc); // crc32
$fr .= pack('V', $c_len); // compressed filesize
$fr .= pack('V', $unc_len); // uncompressed filesize // add this entry to array
$this -> datasec[] = $fr;
$new_offset = strlen(implode('', $this->datasec)); // now add to central directory record
$cdrec = "\x50\x4b\x01\x02";
$cdrec .= "\x00\x00"; // version made by
$cdrec .= "\x14\x00"; // version needed to extract
$cdrec .= "\x00\x00"; // gen purpose bit flag
$cdrec .= "\x08\x00"; // compression method
$cdrec .= $hexdtime; // last mod time & date
$cdrec .= pack('V', $crc); // crc32
$cdrec .= pack('V', $c_len); // compressed filesize
$cdrec .= pack('V', $unc_len); // uncompressed filesize
$cdrec .= pack('v', strlen($name) ); // length of filename
$cdrec .= pack('v', 0 ); // extra field length
$cdrec .= pack('v', 0 ); // file comment length
$cdrec .= pack('v', 0 ); // disk number start
$cdrec .= pack('v', 0 ); // internal file attributes
$cdrec .= pack('V', 32 ); // external file attributes - 'archive' bit set $cdrec .= pack('V', $this -> old_offset ); // relative offset of local header
$this -> old_offset = $new_offset; $cdrec .= $name; // optional extra field, file comment goes here
// save to central directory
$this -> ctrl_dir[] = $cdrec;
} // end of the 'addFile()' method
/**
* Dumps out file
*
* @return string the zipped file
*
* @access public
*/
function file()
{
$data = implode('', $this -> datasec);
$ctrldir = implode('', $this -> ctrl_dir); return
$data .
$ctrldir .
$this -> eof_ctrl_dir .
pack('v', sizeof($this -> ctrl_dir)) . // total # of entries "on this disk"
pack('v', sizeof($this -> ctrl_dir)) . // total # of entries overall
pack('V', strlen($ctrldir)) . // size of central dir
pack('V', strlen($data)) . // offset to start of central dir
"\x00\x00"; // .zip file comment length
} // end of the 'file()' method} // end of the 'zipfile' class
?>
你说的工作原理是不是要用户自己将一个文件夹压缩后在以.zip的形式上传呢。如是这样的话，太复杂。