Difference between POST, GET, REQUIRE

[TheBeginner]

Hi,

Don't really a understand the difference between $GET["name"] ,
$POST["name"] and $_REQUIRE["name"].

Sure POST and GET is easy but REQUIRE.

REQUIRE can get any variable, don't matter if it is a GET or POST variable, so why use POST or GET. REQUIRE should work always.

Please explain it to me -------- "like I was a 2 years old" :=)

[TheBeginner]

I mean $REQUEST NOT $REQUEST !! Sorry.....

[drawmack]

1) It can be a security thing.

i.e. If I process a form with $REQUEST then the input can come in via get or post, whereas if I use $POST then the input must come in via the post method. This offers me a bit of security by not allowing the user to put the information into a query string and circumvent my form. Granted this doesn't offer much security but it is a first line defense against things like sql insertion.

2) It makes code more readable.

i.e. If I am processing variables and I use $REQUEST then all that the person reading the code knows is that they came from the user. If I use $GET and $_POST it is clear wether I expect that variable to come from a form or a query string.