Funciones PHP FTP
PHP FTP Introducción
Las funciones de FTP dan acceso al cliente a los servidores de archivos a través del Protocolo de transferencia de archivos (FTP).
Las funciones de FTP se utilizan para abrir, iniciar sesión y cerrar conexiones, así como cargar, descargar, renombrar, eliminar y obtener información sobre archivos de servidores de archivos. No todas las funciones de FTP funcionarán con todos los servidores ni devolverán los mismos resultados. Las funciones FTP estuvieron disponibles con PHP 3.
Si solo desea leer o escribir en un archivo en un servidor FTP, considere usar el envoltorio ftp:// con las funciones del sistema de archivos que proporcionan una interfaz más simple e intuitiva.
Instalación
Para que estas funciones funcionen, debe compilar PHP con --enable-ftp.
La versión de Windows de PHP tiene soporte incorporado para esta extensión.
Funciones PHP FTP
| Function | Description |
|---|---|
| ftp_alloc() | Allocates space for a file to be uploaded to the FTP server |
| ftp_cdup() | Changes to the parent directory on the FTP server |
| ftp_chdir() | Changes the current directory on the FTP server |
| ftp_chmod() | Sets 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() | Executes a command on the FTP server |
| ftp_fget() | Downloads a file from the FTP server and saves it into an open local file |
| ftp_fput() | Uploads from an open file and saves it to a file on the FTP server |
| ftp_get() | Downloads a file from the FTP server |
| ftp_get_option() | Returns runtime options of the FTP connection |
| ftp_login() | Logs in to the FTP connection |
| ftp_mdtm() | Returns the last modified time of a specified file |
| ftp_mkdir() | Creates a new directory on the FTP server |
| ftp_mlsd() | Returns the list of files in the specified directory |
| ftp_nb_continue() | Continues retrieving/sending a file (non-blocking) |
| ftp_nb_fget() | Downloads a file from the FTP server and saves it into an open file (non-blocking) |
| ftp_nb_fput() | Uploads from an open file and saves it to a file on the FTP server (non-blocking) |
| ftp_nb_get() | Downloads a file from the FTP server (non-blocking) |
| ftp_nb_put() | Uploads a file to the FTP server (non-blocking) |
| ftp_nlist() | Returns a list of files in the specified directory on the FTP server |
| 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() | Alias of ftp_close() |
| ftp_raw() | Sends a raw command to the FTP server |
| ftp_rawlist() | Returns a list of files with file information from a specified directory |
| ftp_rename() | Renames a file or directory on the FTP server |
| ftp_rmdir() | Deletes an empty directory on the FTP server |
| ftp_set_option() | Sets runtime options for the FTP connection |
| ftp_site() | Sends an FTP SITE command to the FTP server |
| ftp_size() | Returns the size of the specified file |
| ftp_ssl_connect() | Opens a secure SSL-FTP connection |
| ftp_systype() | Returns the system type identifier of the FTP server |
Constantes de FTP predefinidas de PHP
| Constant | Type | Description |
|---|---|---|
| FTP_ASCII | Integer | |
| FTP_AUTOSEEK | Integer | |
| FTP_AUTORESUME | Integer | |
| FTP_BINARY | Integer | |
| FTP_FAILED | Integer | Asynchronous transfer has failed |
| FTP_FINISHED | Integer | Asynchronous transfer is completed |
| FTP_IMAGE | Integer | Alias of FTP_BINARY |
| FTP_MOREDATA | Integer | Asynchronous transfer is in progress |
| FTP_TEXT | Integer | Alias of FTP_ASCII |
| FTP_TIMEOUT_SEC | Integer | The timeout used for network operations |
| FTP_USEPASVADDRESS | Boolean |