Write data directly to FTP server without saving on the local filesystem

gistfile1.php

<pre>
<?php

// Host
$host = 'yourhostname.com';
$port = 21;
$timeout = 90;

// Credentials
$username = 'yourusername';
$password = 'yourpassword';

// Data to write and destination
$data = 'Some data to be written to a file';
$path = 'path/on/the/ftp/server';
$filename = 'test.txt';

// Connect to FTP
$connection = "ftp://$username:$password@$host/$path/$filename";
$handle = fopen($connection, "w");
if (! $handle) {
    echo 'Could not connect to FTP server';
} else {
    echo 'Connected to FTP server';
}

// Write to FTP
$bytes = fwrite($handle, $data);
if (! $bytes) {
    echo 'Could not write file to FTP server';
} else {
    echo 'Written file to FTP server';
}

// Disconnect from FTP
$closed = fclose($handle);
if ($closed) {
    echo 'Closed connection to FTP server';
} else {
    echo 'Could not close connection to FTP server';
}

?>
</pre>