XXXIII. FTP functions

介紹

The functions in this extension implement client access to file servers speaking the File Transfer Protocol (FTP) as defined in http://www.faqs.org/rfcs/rfc959.html.

需求

建立這個延伸不需要任何外部程式庫。

安裝

In order to use FTP functions with your PHP configuration, you should add the --enable-ftp option when installing PHP 4 or --with-ftp when using PHP 3.

The windows version of PHP has built in support for this extension. You do not need to load any additional extension in order to use these functions.

執行時期組態

php.ini中沒有定義此延伸的組態指令。

資源類型

This extension uses one resource type, which is the link identifier of the FTP connection, returned by ftp_connect().

預先定義常數

以下的常數由此延伸定義, 只在這個延伸被編譯成PHP或實行時期被動態載入時有效。

FTP_ASCII (integer)

FTP_TEXT (integer)

FTP_BINARY (integer)

FTP_IMAGE (integer)

FTP_TIMEOUT_SEC (integer)

See ftp_set_option() for information.

The following constants were introduced in PHP 4.3.0.

FTP_AUTOSEEK (integer)

See ftp_set_option() for information.

FTP_AUTORESUME (integer)

Automatically determine resume position and start position for GET and PUT requests (only works if FTP_AUTOSEEK is enabled)

FTP_FAILED (integer)

Asynchronous transfer has failed

FTP_FINISHED (integer)

Asynchronous transfer has finished

FTP_MOREDATA (integer)

Asynchronous transfer is still active

範例

範例 1. FTP example

<?php
// set up basic connection
$conn_id = ftp_connect($ftp_server); 

// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass); 

// check connection
if ((!$conn_id) || (!$login_result)) { 
        echo "FTP connection has failed!";
        echo "Attempted to connect to $ftp_server for user $ftp_user_name"; 
        exit; 
    } else {
        echo "Connected to $ftp_server, for user $ftp_user_name";
    }

// upload the file
$upload = ftp_put($conn_id, $destination_file, $source_file, FTP_BINARY); 

// check upload status
if (!$upload) { 
        echo "FTP upload has failed!";
    } else {
        echo "Uploaded $source_file to $ftp_server as $destination_file";
    }

// close the FTP stream 
ftp_close($conn_id); 
?>

內容目錄
ftp_cdup -- Changes to the parent directory
ftp_chdir -- Changes directories on a FTP server
ftp_chmod -- Set permissions on a file via FTP
ftp_close -- Closes an FTP connection
ftp_connect -- Opens an FTP connection
ftp_delete -- Deletes a file on the FTP server
ftp_exec -- Requests execution of a program on the FTP server
ftp_fget -- Downloads a file from the FTP server and saves to an open file
ftp_fput -- Uploads from an open file to the FTP server
ftp_get_option -- Retrieves various runtime behaviours of the current FTP stream
ftp_get -- Downloads a file from the FTP server
ftp_login -- Logs in to an FTP connection
ftp_mdtm -- Returns the last modified time of the given file
ftp_mkdir -- Creates a directory
ftp_nb_continue -- Continues retrieving/sending a file (non-blocking)
ftp_nb_fget -- Retrieves a file from the FTP server and writes it to an open file (non-blocking)
ftp_nb_fput -- Stores a file from an open file to the FTP server (non-blocking)
ftp_nb_get -- Retrieves a file from the FTP server and writes it to a local file (non-blocking)
ftp_nb_put -- Stores a file on the FTP server (non-blocking)
ftp_nlist -- Returns a list of files in the given directory
ftp_pasv -- Turns passive mode on or off
ftp_put -- Uploads a file to the FTP server
ftp_pwd -- Returns the current directory name
ftp_quit -- Closes an FTP connection
ftp_rawlist -- Returns a detailed list of files in the given directory
ftp_rename -- Renames a file on the FTP server
ftp_rmdir -- Removes a directory
ftp_set_option -- Set miscellaneous runtime FTP options
ftp_site -- Sends a SITE command to the server
ftp_size -- Returns the size of the given file
ftp_ssl_connect -- Opens an Secure SSL-FTP connection
ftp_systype -- Returns the system type identifier of the remote FTP server