php remove key on $_POST [duplicate]

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
– animuson ♦, Commented Dec 9, 2011 at 1:33
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
– Halcyon, Commented Dec 9, 2011 at 1:34
i'm so confused as to why it even includes submit buttons and their values lol — oldboy
– oldboy, Commented Sep 12, 2017 at 4:07

user142162 · Accepted Answer · 2011-12-09 01:31:22Z

14

Using unset() should do the trick:

unset($_POST['submit']);

answered Dec 9, 2011 at 1:31

user142162

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Comments

Community · Accepted Answer · 2017-05-23 11:55:13Z

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.

CommunityBot

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answered Dec 9, 2011 at 1:32

alex

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middus · Accepted Answer · 2011-12-09 01:38:47Z

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 9, 2011 at 1:38

middus

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