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Remove value from array?

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Apr 25.2010

Hi,

I have try to remove a value like this:

if (isset($_SESSION[‘radera’])) {
unset ($_SESSION[‘favoriter’][$_GET[‘radera’]]);
}

I also tried this:

$_SESSION[‘favoriter’]=array_diff($_SESSION[‘favoriter’],$_GET[‘radera’]);

When I make a request to the page I have a key value in ?radera=3, but it doesn’t work! Preciate some help! Thanks!

Perhaps there is necessary rearange the keys or values after?

to post a comment
PHP

6 Comments(s) ↴

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@NogDogApr 25.2010 — Hi,

I have try to remove a value like this:
[code=php]
if (isset($_SESSION['radera'])) {
unset ($_SESSION['favoriter'][$_GET['radera']]);
}
[/code]
[/QUOTE]

I see nothing wrong with that syntax, but I have no way of knowing if it is logically correct in this particular context. Also make sure you do your session_start() before that code. If that's not the issue, try echo-ing/var_dump-ing the various variables involved to see if they are truly set and have the expected values.
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@criterion9Apr 26.2010 — 
?radera=3
[/quote]
Do you mean to check the _GET var instead of the _SESSION var?
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@pkngauthorApr 26.2010 — Hi,

First I want to check if 'radera' is set and if 'radera' = 3, I want that it to erase the third key in the _SESSION var called 'favoriter'

?
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@criterion9Apr 26.2010 — Then wouldn't you want:
[code=php]
if (isset($_GET['radera'])) {
unset ($_SESSION['favoriter'][$_GET['radera']]);
}
[/code]
instead of:

if (isset($_SESSION['radera'])) {

unset ($_SESSION['favoriter'][$_GET['radera']]);

}
[/quote]
?
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@pkngauthorApr 26.2010 — Hmmmm, I think that's what I want! Thanks! ?
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@criterion9Apr 26.2010 — You may also want to do some error checking and info scrubbing depending on what you are doing with the data. You might want to check that that index exists or that the value of _GET['radera'] is numeric and a non-negative number.
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