What access is needed to view the PHP source code on a server?

To view the PHP source code on a server, you need access to the server's file system where the PHP files are stored. This typically requires either SSH access to the server or access to a file manager provided by the hosting provider. Once you have access to the files, you can simply open the PHP files in a text editor to view the source code.

// No PHP code snippet needed for this explanation. Just access the server's file system to view the PHP source code.