PHP FTP operation code (upload, copy, move, delete files/create directories)_PHP tutorial

/**
* Function: FTP operations (copy, move, delete files/create directories)
* Time: 2006/5/9
* Author: Xinran Suifeng
* QQ: 276624915
*/
class class_ftp
{
public $off; // Return operation status (success/failure)
public $conn_id; // FTP connection
/**
* Method: FTP connection
* @FTP_HOST -- FTP host
* @FTP_PORT -- Port
* @FTP_USER -- Username
* @FTP_PASS -- Password
*/
function __construct($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($this->conn_id,1); // Turn on passive simulation
}
/**
* Method: Upload file
* @path -- local path
* @newpath -- upload path
* @type -- if the target directory does not exist, create a new one
*/
function up_file($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 whether the permissions and path are correct!";
}
/**
* Method: Move file
* @path -- Original path
* @newpath -- New path
* @type -- If the target directory does not exist, create a new one
*/
function move_file($path,$newpath,$type=true)
{
if($type) $this->dir_mkdirs($newpath);
$this->off = @ftp_rename($this->conn_id,$path,$newpath);
If(!$this->off) echo "File move failed, please check whether the permissions and original path are correct!";
}
/**
* Method: Copy the file
* Note: Since FTP does not have a copy command, the alternative operation of this method is: download and then upload to a new path
* @path -- original path
* @newpath -- New path
* @type -- If the target directory does not exist, create a new path
*/
function copy_file($path,$newpath,$type=true)
{
$downpath = "c:/tmp.dat";
$ This-& GT; OFF = @FTP_get ($ this-& gt; conn_id, $ double, $ PATH, ftp_binary); // Download
if (! $ This-& GT; OFF) " Check whether the permissions and original path are correct! ",
               $this->off = @ftp_delete($this->conn_id,$path); !";
}
/**
* Method: Generate directory
* @path -- path
*/
function dir_mkdirs($path)
{
$path_arr = explode('/',$path); // Get directory Array
$file_name = array_pop($path_arr); // Pop file name
$path_div = count($path_arr); // Get the number of layers
foreach($path_arr as $val) // Create directory
                                                                                                                                                                                                                                                                                                _id,$val);
IF ($ TMP == FALSE)
{
Echo "directory failed, please check whether the authority and path are correct! ";
exit;
}
@ftp_chdir($this->conn_id,$val);
}
}
for($i=1;$i=$ path_div;$i++) // Fall back to the root
                                                                                                                                                                                                             > function close()
{
@ftp_close($this->conn_id);
}
}// class class_ftp end
/**
* Method: Close FTP connection
*/
?>






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