Tutorial on writing ftp File Upload functions using php

Last Update:2013-11-17 Source: Internet

Author: User

Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

This tutorial is a tutorial on using php to write ftp File Upload functions. php is very powerful. You can use its own functions to instance ftp functions and implement File Upload functions.

This tutorial is a tutorial on using php to write ftp File Upload functions. php is very powerful and can use its own functions to instance ftp functions, implement the file upload function. The following is a complete instance.

<?
Function phpftp_top (){
Echo "<! -- Function phpftp_top --> n ";
Echo "Echo "Echo "<title> php ftp Client v1.4 </title> n ";
Echo "Echo "<body bgcolor =" # ffffff "> n ";
Echo "<font face =" courier "> nn ";
}

Function phpftp_bottom (){
Echo "n <! -- Function phpftp_bottom --> n ";
Echo "</font> n ";
Echo "</body> n ";
Echo "}

Function phpftp_login (){
Phpftp_top ();
Echo "<! -- Function phpftp_login --> n ";
Echo "<p> n ";
Echo "<form action =" ftp. php3 "method = post> n ";
Echo "Login :";
Echo "<input name =" phpftp_user "type =" text "> n ";
Echo "<p> n ";
Echo "Password :";
Echo "<input name =" phpftp_passwd "type =" password "> n ";
Echo "<p> n ";
Echo "Directory :";
Echo "<input name =" phpftp_dir "type =" text "> n ";
Echo "<p> n ";
Echo "<input type =" hidden "name =" function "value =" dir "> n ";
Echo "<input type =" submit "value =" connect "> n ";
Echo "</form> n ";
Echo "<p> n ";
Phpftp_bottom ();
}

/* This function does not return TRUE/FALSE-it returns the value
$ Ftp, the current FTP stream .*/

Function phpftp_connect ($ phpftp_user, $ phpftp_passwd ){
$ Phpftp_host = "localhost ";
$ Ftp = ftp_connect ($ phpftp_host );
If ($ ftp ){
If (ftp_login ($ ftp, $ phpftp_user, $ phpftp_passwd )){
Return $ ftp;
}
}
}

Function phpftp_list ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir ){
Phpftp_top ();
Echo "<! -- Function phpftp_list --> n ";
$ Ftp = @ phpftp_connect ($ phpftp_user, $ phpftp_passwd );
If (! $ Ftp ){
Echo "<strong> FTP login failed! </Strong> n ";
Echo "<a href =" ftp. php3 "> Start over? </A> n ";
Phpftp_bottom ();
} Else {
If (! $ Phpftp_dir ){
$ Phpftp_dir = ftp_pwd ($ ftp );
}
If (! @ Ftp_chdir ($ ftp, $ phpftp_dir )){
Echo "<font color =" # ff0000 "> <strong> Can't enter that directory! </Strong> </font> <p> n ";
$ Phpftp_dir = ftp_pwd ($ ftp );
}
Echo "<strong> Current directory: </strong>". $ phpftp_dir ."
N ";
If ($ phpftp_dir = "/"){
$ Phpftp_dir = "";
}
Echo "<table border = 0 cellspacing = 20> n ";
If ($ contents = ftp_nlist ($ ftp ,".")){
$ D_ I = 0;
$ F_ I = 0;
Sort ($ contents );
For ($ I = 0; $ I <count ($ contents); $ I ++ ){
$ File_size = ftp_size ($ ftp, $ contents [$ I]);
If ($ file_size =-1 ){
$ Nlist_dirs [$ d_ I] = $ contents [$ I];
$ D_ I ++;
} Else {
$ Nlist_files [$ f_ I] = $ contents [$ I];
$ Nlist_filesize [$ f_ I] = $ file_size;
$ F_ I ++;
}
}
Echo "<tr> <td> n ";
Echo "<font face =" courier "> <strong> Directories </strong> </font>
N ";
Echo "<form action =" ftp. php3 "method = post> n ";
Echo "<input type =" hidden "name =" function "value =" cd "> n ";
Echo "<input type =" hidden "name =" phpftp_user "value =" ". $ phpftp_user." "> n ";
Echo "<input type =" hidden "name =" phpftp_passwd "value =" ". $ phpftp_passwd." "> n ";
Echo "<input type =" hidden "name =" phpftp_dir "value =" ". $ phpftp_dir." "> n ";
Echo "<select name =" select_directory "size =" 10 "width =" 100 "> n ";
For ($ I = 0; $ I <count ($ nlist_dirs); $ I ++ ){
Echo "<option value =" ". $ nlist_dirs [$ I]." ">". $ nlist_dirs [$ I]. "</option> n ";
}
Echo "</select>
N ";
Echo "<input type =" submit "value =" Enter Directory "> n ";
Echo "</form> n ";
Echo "</td> <td> nn ";
Echo "<font face =" courier "> <strong> Files </strong> </font>
N ";
Echo "<form action =" ftp. php3 "method = post> n ";
Echo "<input type =" hidden "name =" function "value =" get "> n ";
Echo "<input type =" hidden "name =" phpftp_user "value =" ". $ phpftp_user." "> n ";
Echo "<input type =" hidden "name =" phpftp_passwd "value =" ". $ phpftp_passwd." "> n ";
Echo "<input type =" hidden "name =" phpftp_dir "value =" ". $ phpftp_dir." "> n ";
Echo "<select name =" select_file "size =" 10 "> n ";
For ($ I = 0; $ I <count ($ nlist_files); $ I ++ ){
Echo "<option value = "". $ nlist_files [$ I]. ""> ". $ nlist_files [$ I]. "($ nlist_filesize [$ I] bytes )". "</option> n ";
}
Echo "</select>
N ";
Echo "<input type =" submit "value =" Download File "> n ";
Echo "</form> n ";
Echo "</td> </tr> nn ";
} Else {
Echo "<p> <font color =" # ff0000 "> <strong> Directory empty or not readable </strong> </font> <p> n ";
}
Echo "</table> nn ";
Echo "<p> n ";
Echo "<form action =" ftp. php3 "method = post> n ";
$ Cdup = dirname ($ phpftp_dir );
If ($ cdup = ""){
$ Cdup = "/";
}
Echo "<input type =" hidden "name =" function "value =" dir "> n ";
Echo "<input type =" hidden "name =" phpftp_user "value =" ". $ phpftp_user." "> n ";
Echo "<input type =" hidden "name =" phpftp_passwd "value =" ". $ phpftp_passwd." "> n ";
Echo "<input type =" hidden "name =" phpftp_dir "value =" ". $ cdup." "> n ";
Echo "<input type =" submit "value =" Go up one directory "> n ";
Echo "</form> n ";
Echo "<p> n ";
Echo "<form enctype =" multipart/form-data "action =" ftp. php3 "method = post> n ";
Echo "<input type =" hidden "name =" max_file_size "value =" 1000000 "> n ";
Echo "<input type =" hidden "name =" phpftp_user "value =" ". $ phpftp_user." "> n ";
Echo "<input type =" hidden "name =" phpftp_passwd "value =" ". $ phpftp_passwd." "> n ";
Echo "<input type =" hidden "name =" phpftp_dir "value =" ". $ phpftp_dir." "> n ";
Echo "<input type =" hidden "name =" function "value =" put "> n ";
Echo "<input type =" submit "value =" Upload this: "> n ";
Echo "<input name =" userfile "type =" file "> n ";
Echo "</form> n ";
Echo "<p> nn ";
Echo "<form action =" ftp. php3 "method = post> n ";
Echo "<input type =" hidden "name =" function "value =" mkdir "> n ";
Echo "<input type =" hidden "name =" phpftp_user "value =" ". $ phpftp_user." "> n ";
Echo "<input type =" hidden "name =" phpftp_passwd "value =" ". $ phpftp_passwd." "> n ";
Echo "<input type =" hidden "name =" phpftp_dir "value =" ". $ phpftp_dir." "> n ";
Echo "<input type =" submit "value =" Make subdirectory: "> n ";
Echo "<input name =" new_dir "type =" text "> n ";
Ftp_quit ($ ftp );
Phpftp_bottom ();
}
}

Function phpftp_cd ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir, $ select_directory ){
Echo "<! -- Function phpftp_cd --> n ";
$ New_directory = $ phpftp_dir. "/". $ select_directory;
Phpftp_list ($ phpftp_user, $ phpftp_passwd, $ new_directory );
}

Function phpftp_mkdir ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir, $ new_dir ){
Echo "<! -- Function phpftp_mkdir --> n ";
$ Ftp = @ phpftp_connect ($ phpftp_user, $ phpftp_passwd );
If ($ phpftp_dir = ""){
$ Phpftp_dir = "/";
}
If (! $ Ftp ){
@ Ftp_quit ($ ftp );
Phpftp_top ();
Echo "<font color =" # ff0000 "> <strong> FTP login failed! </Strong> </font> <p> n ";
Echo "<a href =" ftp. php3 "> Start over? </A> n ";
Phpftp_bottom ();
} Else {
$ Dir_path = $ phpftp_dir. "/". $ new_dir;
@ Ftp_mkdir ($ ftp, $ dir_path );
@ Ftp_quit ($ ftp );
Phpftp_list ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir );
}
};

Function phpftp_get ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir, $ select_file ){
$ Ftp = @ phpftp_connect ($ phpftp_user, $ phpftp_passwd );
If ($ phpftp_dir = ""){
$ Phpftp_dir = "/";
}
If ((! $ Ftp) | (! @ Ftp_chdir ($ ftp, $ phpftp_dir ))){
@ Ftp_quit ($ ftp );
Phpftp_top ();
Echo "<font color =" # ff0000 "> <strong> FTP login failed! </Strong> </font> <p> n ";
Echo "<a href =" ftp. php3 "> Start over? </A> n ";
Phpftp_bottom ();
} Else {
Srand (double) microtime () * 1000000 );
$ Randval = rand ();
$ Tmpfile = "/var/tmp/xfers/". $ select_file. ".". $ randval;
If (! Ftp_get ($ ftp, $ tmpfile, $ select_file, FTP_BINARY )){
Ftp_quit ($ ftp );
Phpftp_top ();
Echo "<font color =" # ff0000 "> <strong> FTP get failed! </Strong> </font> <p> n <a href = "ftp. php3"> Start over? </A> n ";
Phpftp_bottom ();
} Else {
Ftp_quit ($ ftp );
Header ("Content-Type: application/octet-stream ");
Header ("Content-Disposition: attachment; filename =". $ select_file );
Readfile ($ tmpfile );
}
@ Unlink ($ tmpfile );
}
}

Function phpftp_put ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir, $ userfile, $ userfile_name ){
Srand (double) microtime () * 1000000 );
$ Randval = rand ();
$ Tmpfile = "/var/tmp/xfers/". $ userfile_name. ".". $ randval;
If (! @ Copy ($ userfile, $ tmpfile )){
Phpftp_top ();
Echo "<font color =" # ff0000 "> <strong> Upload failed! Probably no space on server for temp file. </strong> </font> <p> n <a href = "ftp. php3"> Start over? </A> n ";
Phpftp_bottom ();
} Else {
If (! $ Ftp = @ phpftp_connect ($ phpftp_user, $ phpftp_passwd )){
Unlink ($ tmpfile );
Phpftp_top ();
Echo "<font color =" # ff0000 "> <strong> FTP login failed! </Strong> </font> <p> n <a href = "ftp. php3"> Start over? </A> n ";
Phpftp_bottom ();
} Else {
Ftp_put ($ ftp, $ userfile_name, $ tmpfile, FTP_BINARY );
Ftp_quit ($ ftp );
Unlink ($ tmpfile );
Phpftp_list ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir );
}
}
}

Switch ($ function ){
Case "dir ";
Phpftp_list ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir );
Break;
Case "cd ";
Phpftp_cd ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir, $ select_directory );
Break;
Case "get ";
Phpftp_get ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir, $ select_file );
Break;
Case "put ";
Phpftp_put ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir, $ userfile, $ userfile_name );
Break;
Case "mkdir ";
Phpftp_mkdir ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir, $ new_dir );
Break;
Case "";
Phpftp_login ();
Break;
}

?>

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.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

Sales Support

1 on 1 presale consultation

Chat Contact Sales
After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

Open a Ticket
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

Learn More