PHP: How to check in_array() for group of false keys?

Question

I have an action to check. If it has been set false in $Actions I need to do stuff.

$Actions['edit'] => true;
$Actions['delete'] => false;
$Actions['foo'] => true;
$Actions['bar'] => false;

$actionToCheck = 'delete';

Attempt 1:

$falseActions = '???';

if ( in_array( $actionToCheck, $falseActions ) ) {
    //do stuff
}

Attempt 2:

if ( in_array( $actionToCheck, $Actions, false ) ) {
    //do stuff
}

It is not clear what you are trying to do here. It seems to me you know the array and you know the key you want to evaluate within the array, so it should be as simple as if ($Actions[$actionToCheck]) { // do something if true } — Mike Brant
– Mike Brant, Commented Oct 1, 2014 at 17:53
I have an action to check. If it has been set false in ´$Actions´ I need to do stuff. — Martin
– Martin, Commented Oct 1, 2014 at 17:55
Ok. Then if (!$Actions[$actionToCheck]) { // do something if false} — Mike Brant
– Mike Brant, Commented Oct 1, 2014 at 17:56
If you are trying to find out if false is in the $Actions array, then in_array() can do that, but it won't return the key value that is false. — Crackertastic
– Crackertastic, Commented Oct 1, 2014 at 18:01

DragonYen · Accepted Answer · 2014-10-01 20:50:42Z

1

If I get what you are trying to do... How about :

foreach ($Actions AS $cSetting => $bValue) {
    if ($bValue === false) {
        print($cSetting . ' is false');
    }
}

this will allow you to do a targeted action against each setting that is false.

edited Oct 1, 2014 at 20:50

answered Oct 1, 2014 at 18:00

DragonYen

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Comments

Crackertastic · Accepted Answer · 2014-10-01 17:48:01Z

0

I hope I understand your question correctly, it is a little vague.

The in_array() function checks to see if a value is in an array. What you appear to be looking at is if a key exists. You will need to use the array_key_exists() function. Then once you have confirmed it, you can move forward with the rest of your code.

$Actions['edit'] => true;
$Actions['delete'] => false;

$actionToCheck = 'delete';

if(array_key_exists($actionToCheck, $Actions)) {
    //do stuff with the $Actions['delete'] value (which is 'false')
}

See more in the PHP documentation.

answered Oct 1, 2014 at 17:48

Crackertastic

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2 Comments

Martin Over a year ago

This would return true when ´$actionToCheck = 'edit';´ but it should only if the checked action has been set flase in ´$Actions`.

Crackertastic Over a year ago

This will return true when $actionToCheck is equal to the key value of $Actions that you are looking at, which appears to be what you are trying to do.

miken32 · Accepted Answer · 2014-10-01 21:08:51Z

0

EDIT: I notice you have multiple false values in your example. So:

<?php
if ($false_keys = array_keys($Actions, false, true)) {
    foreach ($false_keys as $action) {
        //do stuff with $action
    }
}

Your question is quite unclear...

answered Oct 1, 2014 at 21:08

miken32

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