How can FTP daemons interfere with file permissions set by PHP scripts?

FTP daemons can interfere with file permissions set by PHP scripts because they may override the permissions set by PHP, leading to unexpected behavior or security vulnerabilities. To solve this issue, it is recommended to set the correct file permissions within the PHP script after any file operations are performed.

// Perform file operations here

// Set correct file permissions
$filename = 'example.txt';
chmod($filename, 0644);