How does setting file permissions (CHMOD) play a role in resolving PHP file upload issues?

Setting file permissions (CHMOD) is crucial in resolving PHP file upload issues because it determines who can read, write, and execute the uploaded files. If the file permissions are not set correctly, PHP may not have the necessary permissions to move the uploaded file to the desired directory. By setting the appropriate file permissions, PHP can successfully upload files without any issues.

// Set the correct file permissions for the upload directory
chmod("uploads/", 0777);