php remove key on $_POST

Question

Possible Duplicate:
PHP: How to remove specific element from an array?

Here in my $_POST, I am quite confused on how to trim or drop the key 'submit'. I'm quite confused with this array manipulation. Thanks.

Array
(
    [Physical_Education] => 43
    [Statistics] => 34
    [Biology] => 43
    [Math] => 34
    [quarter] => 1
    [submit] => Submit Grades
)

The `$_POST` array itself isn't really meant to be manipulated. Any information you get from it should be taken out of the array and put into variables or another array; it's better coding practice. — animuson, Dec 09 '11 at 01:33
What is so weird about unsetting properties in an associative array? JavaScript dedicates a whole keyword to it (`delete`) - ah but yes, `$_POST` is a global thing, don't mess with it too much. — Halcyon, Dec 09 '11 at 01:34
i'm so confused as to why it even includes submit buttons and their values lol — oldboy, Sep 12 '17 at 04:07

score 14 · Accepted Answer · answered Dec 09 '11 at 01:31

14

Using unset() should do the trick:

unset($_POST['submit']);

answered Dec 09 '11 at 01:31

score 4 · Answer 2 · edited May 23 '17 at 11:55

4

You can unset() the member, like Tim Cooper suggests.

However, if you don't want that being POST'd in the first place, you could drop the name attribute on your submit button.

edited May 23 '17 at 11:55

Community

answered Dec 09 '11 at 01:32

alex

score 1 · Answer 3 · answered Dec 09 '11 at 01:38

1

Tackle the root of the problem!

It's in there because your submit button looks like this:

<input type="submit" name="submit" value="Submit Grades">

Thus, remove the name and it won't be sent:

<input type="submit" value="Submit Grades">

answered Dec 09 '11 at 01:38

middus

3 Answers3