What are common issues when uploading files using PHP and accessing them via FTP?

Common issues when uploading files using PHP and accessing them via FTP include permission errors, file path issues, and file transfer mode problems. To solve these issues, ensure that the correct permissions are set for the uploaded files, double-check the file paths for accuracy, and make sure that the FTP transfer mode is set to binary for non-text files.

// Example PHP code snippet to upload a file and access it via FTP with proper settings
$ftp_server = "ftp.example.com";
$ftp_user = "username";
$ftp_pass = "password";
$local_file = "file.txt";
$remote_file = "file.txt";

// Connect to FTP server
$ftp_conn = ftp_connect($ftp_server);
$login = ftp_login($ftp_conn, $ftp_user, $ftp_pass);

// Set transfer mode to binary
ftp_pasv($ftp_conn, true);

// Upload file to FTP server
if (ftp_put($ftp_conn, $remote_file, $local_file, FTP_BINARY)) {
    echo "File uploaded successfully";
} else {
    echo "Error uploading file";
}

// Close FTP connection
ftp_close($ftp_conn);