FTP context options
FTP context options — FTP context option listing
Description
Context options for ftp:// and ftps:// transports.
Changelog
| Version | Description |
|---|---|
| 5.1.0 |
Added proxy.
|
| 5.0.0 |
Added overwrite and resume_pos.
|
Notes
Note: Underlying socket stream context options
Additional context options may be supported by the underlying transport For ftp:// streams, refer to context options for the tcp:// transport. For ftps:// streams, refer to context options for the ssl:// transport.
- Функция Контекстные опции сокета() - Список контекстных опций сокета
- Функция Опции контекста HTTP() - Cписок опций контекста HTTP
- Функция Параметры контекста FTP() - Список параметров контекста FTP
- Функция Опции контекста SSL() - Список опций контекста SSL
- Функция Опции контекста CURL() - Список опций контекста CURL
- Функция Контекстные опции Phar () - Список контекстных опций Phar
- Функция MongoDB context options() - MongoDB context option listing
- Функция Параметры контекста() - Список параметров контекста
Коментарии
This is an example of how to allow fopen() to overwrite a file on an FTP site. If the stream context is not modified, an error will occur: "...failed to open stream: Remote file already exists and overwrite context option not specified...".
<?php
// The path to the FTP file, including login arguments
$ftp_path = 'ftp://username:password@example.com/example.txt';
// Allows overwriting of existing files on the remote FTP server
$stream_options = array('ftp' => array('overwrite' => true));
// Creates a stream context resource with the defined options
$stream_context = stream_context_create($stream_options);
// Opens the file for writing and truncates it to zero length
if ($fh = fopen($ftp_path, 'w', 0, $stream_context))
{
// Writes contents to the file
fputs($fh, 'example contents');
// Closes the file handle
fclose($fh);
}
else
{
die('Could not open file.');
}
?>
Apparently the overwrite-option only registers as false if it's absent. If I specify it as false, it acts the same as true and overwrites. Then,<?php
if (empty($opts['overwrite'])) {
unset($opts['overwrite']);
}
?>
...was the simple fix for my FTP stream wrapper class sporting default options. This is quite unexpected though; false means false even if I say so? Apparently PHP (7.0.2) just checks if the option exists, not its boolean value.
// Ruta del ftp debe coincidir con la ruta del localhost
$ftp_path = 'ftp://francisco:aaa@localhost:21/ftparchivo.txt';
// Escribimos las opciones de stream
$stream_options = array('ftp' => array('overwrite' => TRUE));
// Creamos un contexto
$stream_context = stream_context_create($stream_options);
\escribir::verifacionnota($stream_context, 'STREAMCONTEXT');
// Abrimos el fichero que vamos a leer
$flujo = fopen($ftp_path, 'r', false, $stream_context);
//Funcion creada :vardump + string
\escribir::verifacionnota($flujo, 'VARDUMP FOPEN');
$contenido = '';
//Traduccion mientras el contenido del archivo no este al final del fichero ==> feof
while (!feof($flujo)) {
//Entonces lee 8192 bytes del archivo y añadelos a la variable contenido
$contenido .= fread($flujo, 8192);
}
\escribir::verifacionnota($contenido, 'VARDUMP CONTENIDO');
//Cerramos el flujo
fclose($flujo);