Ftp_fput()

What is ftp_fput()?

The ftp_fput() function is a PHP built-in function that uploads a file to the FTP server. The function takes three parameters:

1. ftp_stream: The connection identifier returned by the ftp_connect() function.
2. remote_file: The remote file name to which the file should be uploaded.
3. local_file: The local file that should be uploaded to the remote FTP server.

The function returns a boolean value. If the function is successful in uploading the file, it returns true. Otherwise, it returns false.

Syntax of ftp_fput()

The syntax of the ftp_fput() function is as follows:

bool ftp_fput ( resource $ftp_stream , string $remote_file , string $local_file [, int $mode = FTP_IMAGE [, int $startpos = 0 ]] )

The ftp_fput() function takes five parameters: ftp_stream, remote_file, local_file, mode, and startpos. The ftp_stream parameter is the connection identifier returned by the ftp_connect() function. The remote_file parameter is the remote file name to which the file should be uploaded. The local_file parameter is the local file that should be uploaded to the remote FTP server. The mode parameter is an optional parameter that specifies the transfer mode, and the startpos parameter is an optional parameter that specifies the starting position of the transfer.

Usage of ftp_fput()

To use the ftp_fput() function, you first need to establish a connection to the FTP server using the ftp_connect() function. Here's an example:

<?php

// Set up an FTP connection
$conn = ftp_connect('ftp.example.com');

// Login with your FTP credentials
ftp_login($conn, 'username', 'password');

// Upload a local file to the remote FTP server
ftp_fput($conn, 'remote_file.txt', '/local/directory/local_file.txt', FTP_ASCII);

// Close the FTP connection
ftp_close($conn);

In this example, we establish a connection to the FTP server using the ftp_connect() function. Then we log in using our FTP credentials using the ftp_login() function. Finally, we upload a local file to the remote FTP server using the ftp_fput() function and close the FTP connection.

Error handling in ftp_fput()

It's important to handle errors properly when using the ftp_fput() function. If the function returns false, it means that the file couldn't be uploaded for some reason. Here's an example of how to handle errors:

<?php

if (ftp_fput($conn, 'remote_file.txt', '/local/directory/local_file.txt', FTP_ASCII) === false) {
    echo "Failed to upload the file.\n";
} else {
    echo "File uploaded successfully.\n";
}

In this example, we check the return value of the ftp_fput() function. If it's false, we display an error message; otherwise, we display a success message.

Conclusion

The ftp_fput() function is a useful PHP built-in function that allows you to upload a file to an FTP server. By following the guidelines and best practices outlined in this article, you can use the ftp_fput() function in your PHP projects with confidence.