How do I empty the cache on my iPhone?

How do I empty the cache on my iPhone?
How to clear your iPhone’s cache

Open the Settings app and scroll down to Safari.
In the Safari settings, scroll down and tap ‘Clear History and Website Data’.
Tap ‘Clear History and Data’.

How to clear your iPhone’s cache
  1. Open the Settings app and scroll down to Safari.
  2. In the Safari settings, scroll down and tap ‘Clear History and Website Data’.
  3. Tap ‘Clear History and Data’.