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Php online file and folder compression instance code

Source: Internet
Author: User
Tags php online php tutorial sprintf strlen zip
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Note that this PHP Tutorial file compression code is used to help zip.exe files, so we need to extract zip.exe compressed files.

<? Php

If (! IsSet ($ _ GET ['dirname'])
{
Show_input_form ();
}
Else
{
// Check if empty
If (empty ($ _ GET ['dirname'])
 {
Hg_exit ("Enter the folder name! ");
 }

// Check valid dirname
If (FALSE! = Strpos ($ _ GET ['dirname'], "/")
 {
Hg_exit ("/" is an invalid folder name! ");
 }
If (FALSE! = Strstr ($ _ GET ['dirname'], "...")
 {
Hg_exit ("" .. "is an invalid folder name! ");
 }

// Check valid dir
If (! Is_dir ($ _ GET ['dirname'])
 {
Hg_exit ("" {$ _ GET ['dirname']} "is not a valid folder! ");
 }

$ SzData = "";
$ SzInfo = "";

$ File_count = @ ZipDir ($ _ GET ['dirname'], & $ szData, & $ szInfo );
$ Info_size_16byte = @ sprintf ("% 016d", @ strlen ($ szInfo ));
$ SzData = @ sprintf ("% 016d", $ file_count). $ info_size_16byte. $ szInfo. $ szData;
$ Filename = $ _ GET ['dirname']. ". dat ";
If (function_exists (gzencode ))
 {
$ SzData = gzencode ($ szData );
$ Filename. = ". gz ";
 }
 
Header ("Content-type: application/octet-stream ");
Header ("Accept-Ranges: bytes ");
Header ("Accept-Length:". strlen ($ szData ));
Header ("Content-Disposition: attachment; filename = $ filename ");

Echo $ szData;
}


Function show_input_form ()
{
Echo HtmlHead ("file Packaging ");
Echo "<form name =" input "> n"
. "Enter the folder to be packaged. Note that only the folder in the current directory can be downloaded! <P> n"
. "<Input name =" dirname "> n"
. "<Input type =" button "value =" OK "onClick =" show_download_link (dirname. value); "> n"
. "</Form> n ";
Echo "<script> n"
. "Input. dirname. focus (); n"
. "Function show_download_link (dir) n"
."{"
. "Var top = (screen. height-200)/2; n"
. "Var left = (screen. width-300)/2; n"
. "Newwin = window. open ('','', 'width = 300, height = 200, top = '+ top +', left = '+ left +', resizable = 0, scrollbars = auto'); n"
. "Url =" {$ _ SERVER ['php _ SELF ']} "+ "? Dirname = "+ dir; n"
. "Newwin.doc ument. write ('<a href =' + url + '> click this link to download, <br> or right-click here and choose "save as" </a>'); n"
."}"
. "</Script> n ";
Echo HtmlFoot ();
}


Function ZipDir ($ szDirName, & $ szData, & $ szInfo)
{
// Write dir header
$ SzInfo. = "$ szDirName | [dir] n ";
$ File_count = 0;
$ HDir = OpenDir ($ szDirName );
While ($ file = ReadDir ($ hDir ))
 {
If ($ file = "." | $ file = "..") continue;

$ SzCurFile = "$ szDirName/$ file ";

If (Is_Dir ($ szCurFile ))
  {
$ File_count + = ZipDir ($ szCurFile, & $ szData, & $ szInfo );
  }
Else if (Is_File ($ szCurFile ))
  {
$ HCurFile = fopen ($ szCurFile, "rb ");
$ Size = filesize ($ szCurFile );
$ SzStream = fread ($ hCurFile, $ size );
Fclose ($ hCurFile );
$ File_count ++;

// Write info
$ SzInfo. = "$ szCurFile | $ sizen ";

// Write data
$ SzData. = $ szStream;
  }
 }

// Write dir footer
$ SzInfo. = "$ szDirName | [/dir] n ";
Return $ file_count;
}


Function hg_exit ($ str)
{
Echo HtmlHead ("Error, exit! ");
Echo "Echo HtmlFoot ();
Exit;
}


Function HtmlHead ($ title)
{
Return ". "<Meta http-equiv =" Content-Type "content =" text/html; charset = gb2312 "> n"
. "<Style type =" text/css tutorial "> n"
. "Body, input, td {font: 12px verdana} n"
. "</Style> n"
. "</Head> nn <body> nn ";
}


Function HtmlFoot ()
{
Return Copyright (). "n </body> nn }


Function Copyright ()
{
Return "<center> <font size =" 5 "face =" _ GB2312 "color =" red "> delete this file immediately after use, to avoid being discovered and used by others! </Font> </center> n"
<Br> . "<Center> n"
. "<P style =" font-family: verdana; font-size: 12px "> Contact us: n"
. "<A href =" http://www.111cn.net/"target =" _ blank "> http://www.111cn.net/</a> </p> n"
. "</Center> n"
. "</Body> n"
. "N"
. "</Html> ";
}

?>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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