Showing Package ‘php’ has no installation candidate
It might be useful if you also provide some info about the OS you’re working on.
Also, if you could paste the log and its error messages, instead of a screenshot (or a photograph of the screen) it would be easier for those who could help you out (e.g. I have impaired vision and for me it’s very hard, often impossible, to read logs screenshots).
Furthermore, pasting logs as text allows you to redact sensitive information about your system, which is never a good idea to publish publicly. E.g. you can replace your actual user name with XXXX, for the goal is to focus on the error messages, and it’s also a good idea to tweak absolute paths which might leak personal information about your system.