PHP FTP Learning Notes

Ftp_alloc () Allocates space for the file to upload to the FTP server.
Ftp_cdup () changes the current directory to the parent directory on the FTP server.
Ftp_chdir () changes the current directory on the FTP server.
Ftp_chmod () Sets permissions on the file via FTP.
Ftp_close () closes the FTP connection.
Ftp_connect () Open the FTP connection.
Ftp_delete () Delete the files on the FTP server.
Ftp_exec () executes a program/command on FTP.
Ftp_fget () Download a file from the FTP server and save it to a local file that is already open
Ftp_fput () upload an open file and save it as a file on the FTP server
Ftp_get_option () returns the various options settings for the current FTP connection.
Ftp_get () Download the file from the FTP server.
Ftp_login () Log on to the FTP server.
Ftp_mdtm () returns the last modified time of the specified file.
Ftp_mkdir () Creates a new directory on the FTP server.
Ftp_nb_continue () continuously gets/sends the file (non-blocking).
Ftp_nb_fget ()
Download the file from the FTP server and save it to a file that is already open locally (non-blocking)
Ftp_nb_fput ()
Upload the Open file and save it as a file (non-blocking) on the FTP server.
Ftp_nb_get () Download the file (non-blocking) from the FTP server.
Ftp_nb_put () uploads the file to the server (non-blocking).
Ftp_nlist () Returns a list of files for the specified directory.
FTP_PASV () returns whether the current FTP passive mode is turned on.
Ftp_put () upload the file to the server.
FTP_PWD () returns the current directory name.
Alias of Ftp_quit () Ftp_close ().
Ftp_raw () sends a raw command to the FTP server.
Ftp_rawlist () Returns a detailed list of the files in the specified directory.
Ftp_rename () renames the file or directory on the FTP server.
Ftp_rmdir () deletes the directory on the FTP server.
Ftp_set_option () sets various FTP run-time options.
Ftp_site () sends the site command to the server.
Ftp_size () returns the size of the specified file.
Ftp_ssl_connect () to open a secure ssl-ftp connection.
Ftp_systype () returns the system type identifier of the remote FTP server.


Class Ftputil {

Public $off; Return operation status (Success/failure)
public $conn _id; FTP connection

/**
* Method: FTP connection
* @FTP_HOST--FTP host
* @FTP_PORT--Port
* @FTP_USER-User name
* @FTP_PASS--Password
*/
function __construct ($FTP _host, $FTP _port, $FTP _user, $FTP _pass) {
$this->conn_id = @ftp_connect ($FTP _host, $FTP _port) or Die (' FTP server Connection failed ');

@ftp_login ($this->conn_id, $FTP _user, $FTP _pass) or Die (' FTP server login failed ');
@ftp_pasv ($this->conn_id, 1);//Open Passive simulation
}

/**
* Method: Upload File
* @path--Local path
* @newPath--Upload path
* @type-New If the target directory does not exist
*/
function Up_file ($path, $newPath, $type = True) {
if ($type) {
$this->dir_mkdirs ($newPath);
}

$this->off = @ftp_put ($this->conn_id, $newPath, $path, ftp_binary);
if (! $this->off) {
echo ' File upload failed, please check the permissions and path is correct! ';
}
}

/**
* Method: Move File
* @path-The original path
* @newPath-New Path
* @type-New If the target directory does not exist
*/
function Move_file ($path, $newPath, $type = True) {
if ($type) {
$this->dir_mkdirs ($newPath);
}

$this->off = @ftp_rename ($this->conn_id, $path, $newPath);
if (! $this->off) {
echo "File move failed, please check the permissions and the original path is correct!" ";
}
}

/**
* Method: Copy File
* Description: Due to FTP no copy command, this workaround is: Download and upload to the new path
* @path-The original path
* @newPath-New Path
* @type-New If the target directory does not exist
*/
function Copy_file ($path, $newPath, $type = True) {
$downPath = "C:/tmp.dat";

$this->off = @ftp_get ($this->conn_id, $downPath, $path, ftp_binary);//download
if (! $this->off) {
echo "File copy failed, please check the permissions and the original path is correct!" ";
}
$this->up_file ($downPath, $newPath, $type);
}

/**
* Method: Delete File
* @path--Path
*/
function Del_file ($path) {
$this->off = @ftp_delete ($this->conn_id, $path);
if (! $this->off) {
echo "File deletion failed, please check the permissions and path is correct!" ";
}
}

/**
* Method: Generate Directory
* @path--Path
*/
function Dir_mkdirs ($path) {
$path _arr = explode ('/', $path); Fetch directory Array
$file _name = Array_pop ($path _arr); Popup file name
$path _div = count ($path _arr); Number of layers to be taken

foreach ($path _arr as $val) {//Create directory
if (@ftp_chdir ($this->conn_id, $val) = = FALSE) {
$tmp = @ftp_mkdir ($this->conn_id, $val);
if ($tmp = = FALSE) {
echo "Directory Creation failed, please check the permissions and path is correct!" ";
Exit
}
@ftp_chdir ($this->conn_id, $val);
}
}

for ($i = 1; $i <= $path _div; $i + +) {//fallback to root
@ftp_cdup ($this->conn_id);
}
}

/**
* Method: Close FTP connection
*/
function Close () {
@ftp_close ($this->conn_id);
}

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