Notice: Undefined index: submit in sample.php on line 25

Question

Possible Duplicate:
PHP: “Notice: Undefined variable” and “Notice: Undefined index”

When do we get this error?

Notice: Undefined index: submit in C:\wamp\www\sample.php on line 25

What is the exact meaning of this perticular error?

Some code examples would be good. Take a look at how other people ask questions. Maybe even search for your question first, rather than answer it. — Jessedc, Jul 17 '12 at 03:43
@sayantan bagchi: it's not necessary. There are 4 answers here and billion similar questions in the right "Related" bar — zerkms, Jul 17 '12 at 03:54
You are giving the error, which is why you have four answers which are correct. But you aren't giving your actual code that is generating the error. If you had given that, one of the four answers probably would have told you exactly what was wrong in the code and not all been generalized solutions. Also, being snappy when asking a question isn't really courteous or likely to result in getting more help. — Fluffeh, Jul 17 '12 at 03:55
@PhpMyCoder: I decided to get some easy rep points instead ;-P — zerkms, Jul 17 '12 at 03:57
@zerkms When you have 54.2k does an extra 20 really make that much of a difference? :-P — Bailey Parker, Jul 17 '12 at 03:58
@zerkms Hey, don't be a greedy guts! Leave the easy rep for novices like myself so that we too can feel like we are contributing something to SO. You concentrate on this big tricky questions! :) — Fluffeh, Jul 17 '12 at 04:08
Oops! Your edit couldn't be submitted because: Your post does not have much context to explain the code sections; please explain your scenario more clearly — sayantan bagchi, Jul 17 '12 at 04:17
many many thanks to all of you... i have fixed the code... it works fine with google chrome... there is some prob with IE7... thank you guyess... thanks a lot — sayantan bagchi, Jul 17 '12 at 05:58

score 2 · Answer 1 · answered Jul 17 '12 at 03:39

2

This means exactly what it says: you're addressing to an undefined index in an array

$arr = array();
echo $arr['foo'];

In the example above the array is empty but I tried to output 'foo' item value, which doesn't exist.

answered Jul 17 '12 at 03:39

zerkms

249,484
69
436
539

score 1 · Answer 2 · answered Jul 17 '12 at 03:40

1

It means you are trying to access a part of an arraythat isn't there.

If you have an array with 5 elements, you ca get to them via:

$array[0] through to $array[4]

But if you try $array[76] which doesn't exist, you will get an undefined Index error.

answered Jul 17 '12 at 03:40

Fluffeh

33,228
16
67
80

score 1 · Answer 3 · edited May 23 '17 at 12:12

1

You've probably got an array that you're accessing like $_POST['submit']. That error message is saying is the element 'submit' of the array doesn't exist, and it's throwing a warning.

You should check that array elements exist before using them isset() before you access them to avoid avoid the warning.

Edit: possible duplicate of this: Undefined index in PHP

edited May 23 '17 at 12:12

Community

1
1

answered Jul 17 '12 at 03:40

Jessedc

12,320
3
50
63

i read that post... and i tried that bt its not helping that is why i have post mentioning this particular error... – sayantan bagchi Jul 17 '12 at 04:05
@sayantan bagchi: what if you read some manual? http://php.net/isset – zerkms Jul 17 '12 at 04:08
It's a standard PHP error. You're probably wondering why your form isn't submitting correctly, which is a different issue. – Jessedc Jul 17 '12 at 04:13
tahnk you so much... i will look into this... – sayantan bagchi Jul 17 '12 at 04:13

score 0 · Answer 4 · answered Jul 17 '12 at 03:43

0

have you correctly mentioned the method in your form GET or POST ?? I think you are accessing/testing it without declaring it. Let me know if this is the case.

answered Jul 17 '12 at 03:43

swapnesh

26,318
22
94
126

Notice: Undefined index: submit in sample.php on line 25

4 Answers4