Turns passive mode on or off

# ftp_pasv

(PHP 4, PHP 5, PHP 7, PHP 8)

ftp_pasv — Turns passive mode on or off

### Description

ftp_pasv(FTP\Connection `$ftp`, bool `$enable`): bool

ftp_pasv() turns on or off passive mode. In passive mode, data connections are initiated by the client, rather than by the server. It may be needed if the client is behind firewall.

Please note that ftp_pasv() can only be called after a successful login or otherwise it will fail.

### Parameters

`ftp`

  An FTP\Connection instance.

`enable`

  If `true`, the passive mode is turned on, else it's turned off.

### Return Values

Returns `true` on success or `false` on failure.

### Changelog

Version | Description
--- | ---
8.1.0 | The `ftp` parameter expects an FTP\Connection instance now; previously, a resource was expected.

### Examples

Example #1 ftp_pasv() example

`<?php
$file = 'somefile.txt';
$remote_file = 'readme.txt';
// set up basic connection
$ftp = ftp_connect($ftp_server);
// login with username and password
$login_result = ftp_login($ftp, $ftp_user_name, $ftp_user_pass);
// turn passive mode on
ftp_pasv($ftp, true);
// upload a file
if (ftp_put($ftp, $remote_file, $file, FTP_ASCII)) {
echo "successfully uploaded $file\n";
} else {
echo "There was a problem while uploading $file\n";
}
// close the connection
ftp_close($ftp);
?>`
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