$_REQUEST (or) $_GET functions in php

Question

i am install xampp recently

i will write a function in php

$value=$_GET['value'];

but it shows an error "Undefined index"

i will also try $_REQUEST function

plse help me

What's the URL, do you have `?value=something` in there? – BenOfTheNorth Apr 12 '12 at 10:57 — BenOfTheNorth, Apr 12 '12 at 10:57
maybe because `value` does not exist? – PeeHaa Apr 12 '12 at 10:58 — PeeHaa, Apr 12 '12 at 10:58

score 5 · Answer 1 · edited Apr 12 '12 at 11:01

5

It shows undefined index because you did not set the GET parameter value. If you will not always be setting it, do something like this:

$value = (isset($_GET['value'])) ? $_GET['value'] : 'default_value';

...or...

if (isset($_GET['value'])) {
  $value = $_GET['value'];
}

Essentially, you need to verify that a variable is set before you try and use it or it will generate warnings.

edited Apr 12 '12 at 11:01

answered Apr 12 '12 at 10:59

DaveRandom

`ss`? I understand naming is arbitrary, but this OP might well take that literally (as in, a requirement). – Grant Thomas Apr 12 '12 at 11:00
1

@Mr.Disappointment The question originally used `$_GET['ss']` but obviously the OP has edited. Since he realised this distinction, hopefully that won't be an issue anyway. – DaveRandom Apr 12 '12 at 11:01
That makes sense - thanks for clearing that up. – Grant Thomas Apr 12 '12 at 11:02

1 Answers1