Using php to write ftp file upload function tutorial _ PHP Tutorial

Use php to write an ftp file upload function tutorial. 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. this tutorial is a tutorial on using php to write ftp file upload functions. php is very powerful, you can use functions provided by Alibaba Cloud to implement ftp 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" N ";
Echo"N ";
Echo"N ";
Echo"Php ftp Client v1.4N ";
Echo"N ";
Echo"N ";
Echo "nn ";
}

Function phpftp_bottom (){
Echo "n N ";
Echo "n ";
Echo"N ";
Echo"N ";
}

Function phpftp_login (){
Phpftp_top ();
Echo" N ";
Echo"

N ";
Echo "n ";
Echo"

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" N ";
$ Ftp = @ phpftp_connect ($ phpftp_user, $ phpftp_passwd );
If (! $ Ftp ){
Echo"FTP login failed!N ";
Echo "Start over? N ";
Phpftp_bottom ();
} Else {
If (! $ Phpftp_dir ){
$ Phpftp_dir = ftp_pwd ($ ftp );
}
If (! @ Ftp_chdir ($ ftp, $ phpftp_dir )){
Echo"Can't enter that directory!

N ";
$ Phpftp_dir = ftp_pwd ($ ftp );
}
Echo"Current directory:". $ Phpftp_dir ."
N ";
If ($ phpftp_dir = "/"){
$ Phpftp_dir = "";
}
Echo"

Directory empty or not readable

N ";
}
Echo"

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" Nn ";} Else {Echo"

N "; Echo"Directories N "; Echo "n "; Echo"

Nn "; Echo"Files N "; Echo "n "; Echo"

Nn ";
Echo"

N ";
Echo "n ";
Echo"

N ";
Echo "n ";
Echo"

Nn ";
Echo"

N ";
Echo" N ";
Echo" N ";
Echo" N ";
Echo" N ";
Echo" N ";
Echo" N ";
Ftp_quit ($ ftp );
Phpftp_bottom ();
}
}

Function phpftp_cd ($ phpftp_user, $ phpftp_passwd, $ phpftp_dir, $ select_directory ){
Echo" 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" N ";
$ Ftp = @ phpftp_connect ($ phpftp_user, $ phpftp_passwd );
If ($ phpftp_dir = ""){
$ Phpftp_dir = "/";
}
If (! $ Ftp ){
@ Ftp_quit ($ ftp );
Phpftp_top ();
Echo"FTP login failed!

N ";
Echo "Start over? 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"FTP login failed!

N ";
Echo "Start over? 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"FTP get failed!

NStart over? 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"Upload failed! Probably no space on server for temp file.

NStart over? N ";
Phpftp_bottom ();
} Else {
If (! $ Ftp = @ phpftp_connect ($ phpftp_user, $ phpftp_passwd )){
Unlink ($ tmpfile );
Phpftp_top ();
Echo"FTP login failed!

NStart over? 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;
}

?>

Ftp file upload function tutorial. php is very powerful. you can use its own functions to instance ftp functions and implement file upload functions. this tutorial...