When should I use GET or POST method? What's the difference between them?

Question

What\'s the difference when using GET or POST method? Which one is more secure? What are (dis)advantages of each of them?

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Answer 1

Use GET method if you want to retrieve the resources from URL. You could always see the last page if you hit the back button of your browser, and it could be bookmarked, so it is not as secure as POST method.

Use POST method if you want to 'submit' something to the URL. For example you want to create a google account and you may need to fill in all the detailed information, then you hit 'submit' button (POST method is called here), once you submit successfully, and try to hit back button of your browser, you will get error or a new blank form, instead of last page with filled form.