How to disable repeated page refresh in PHP-php Tutorial

In PHP, how can I prevent repeated page refresh? thank you. in PHP, how does one disable repeated page refresh. if you cannot repeat F5 and refresh button ------ solution ------------------ There are four methods: 1. Use JAVASCRIPT to Judge 2. The session is limited to 3. How to disable repeated page refreshes in hidden & nbsp; 4.he PHP
Thank you for helping me.
In PHP, how does one disable repeated page refresh? if you cannot refresh the page repeatedly, press F5 or refresh

------ Solution --------------------
There are four methods: 1. Use JAVASCRIPT for judgment
2. Session limitation
3. Hidden
4. the header () is redirected immediately. I think the header ("Location: http: // ^") is the best. when the data is processed, it is immediately redirected to the page,
It will not change even if it is refreshed;