FTP (File Transfer Protocol) is a standard protocol used for transferring files between computers over a network. In PHP, the FTP functions provide a way to manipulate files and directories on a remote FTP server. Below, I'll give you a general outline of the FTP functionality in PHP and then provide some basic examples.
Connecting and Closing
Login
File and Directory Operations
Passive Mode
<?php
$ftp_server = "ftp.example.com";
$ftp_user = "username";
$ftp_pass = "password";
// Establish a connection
$connection = ftp_connect($ftp_server) or die("Could not connect to $ftp_server");
// Login
if (@ftp_login($connection, $ftp_user, $ftp_pass)) {
echo "Connected as $ftp_user@$ftp_server\n";
} else {
echo "Couldn't connect as $ftp_user\n";
}
// Close the connection
ftp_close($connection);
?>
2. Upload a file to the FTP server:
<?php
$ftp_server = "ftp.example.com";
$ftp_user = "username";
$ftp_pass = "password";
$local_file = "localfile.txt";
$remote_file = "remotefile.txt";
$connection = ftp_connect($ftp_server);
ftp_login($connection, $ftp_user, $ftp_pass);
if (ftp_put($connection, $remote_file, $local_file, FTP_ASCII)) {
echo "Successfully uploaded $local_file\n";
} else {
echo "Error uploading $local_file\n";
}
ftp_close($connection);
?>
3. Download a file from the FTP server:
<?php
$ftp_server = "ftp.example.com";
$ftp_user = "username";
$ftp_pass = "password";
$local_file = "localfile.txt";
$remote_file = "remotefile.txt";
$connection = ftp_connect($ftp_server);
ftp_login($connection, $ftp_user, $ftp_pass);
if (ftp_get($connection, $local_file, $remote_file, FTP_ASCII)) {
echo "Successfully downloaded $remote_file to $local_file\n";
} else {
echo "Error downloading $remote_file\n";
}
ftp_close($connection);
?>
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