Distinguish GET from POST in PHP

Question

I'm making a website, and have configured my web server to route any request for dynamic content to index.php. On this site, some requests are GET others are POST. How can I distinguish them? Related questions are

what is the value of the $_GET variable during a POST request?
what is the value of the $_POST variable during a GET request?

A POST request has set $_POST values. A GET request has set $_GET values? — Nanne
– Nanne, Commented Feb 10, 2012 at 16:09
Does that mean the "wrong" superglobal doesn't exist? Is empty? Exists, but is equal to NULL? And what happens if you do a POST on a URL like "some.site/page?arg1=foo&arg2=bar"? — Adrian Ratnapala
– Adrian Ratnapala, Commented Feb 10, 2012 at 16:11
@Nanne A POST request can also have $_GET values. A GET request will not have $_POST values. — ceejayoz
– ceejayoz, Commented Feb 10, 2012 at 16:30

ceejayoz · Accepted Answer · 2012-02-10 16:09:56Z

what is the value of the $_GET variable during a POST request?

Depends. Data can be present in both. The action for a <form> might be example.php?action=testing, which would result in $_GET['action'] having the value of testing. All of the $_POST data would also be present.

what is the value of the $_POST variable during a GET request?

An empty array.

Manse · Accepted Answer · 2012-02-10 16:08:51Z

Use $_SERVER['REQUEST_METHOD']

Which request method was used to access the page; i.e. 'GET', 'HEAD', 'POST', 'PUT'.

Taken from the $_SERVER docs

Esailija · Accepted Answer · 2012-02-10 16:08:59Z

4

$_SERVER['REQUEST_METHOD'] === 'POST'

answered Feb 10, 2012 at 16:08

Esailija

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Distinguish GET from POST in PHP

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