if i delete photos on my iphone will the photos backed up on icloud be deleted?

If you’re using iCloud photo, yes. iCloud photo is not an archival backup. It is a synchronization service that keeps your photo library sync’d across all your devices.

To remove photos from the device you will need to archive them somewhere first - copy them to a computer or some other online archival storage like DropBox before you delete them.

I need my deleted pictures back please help me 22 June deleted pictures backup please help me

If you use iCloud photo and they are no longer in the recently deleted folder, they are gone.