PHP - How do I unset an array index by value inside that index

Question

I have an array of objects ($response) that looks like this:

Array
(
    [0] => stdClass Object
        (
            [CardNumber] => 5897853070424xxx
            [CardHolderName] => P Stoltz
            [CardHolderContactNumber] => 
            [CardHolderEmailAddress] => 
            [CardExpiryDate] => 2017-09-01T00:00:00
            [CardHolderTypeID] => 2
            [LastUsedDate] => 2017-05-25T00:00:00
        )
    [1] => stdClass Object
        (
            [CardNumber] => 589785304326xxx
            [CardHolderName] => J Stoltz
            [CardHolderContactNumber] => 
            [CardHolderEmailAddress] => 
            [CardExpiryDate] => 2017-09-01T00:00:00
            [CardHolderTypeID] => 2
            [LastUsedDate] => 2017-05-25T00:00:00
        )

)

Now, I need to unset the entire object where CardNumber != '589785304326xxx'

I have tried this:

$cardnumber = '5897853070424xxx'; 
    foreach( $response as $res )
    {
        if($res->CardNumber != $cardnumber)
        {
            unset($res);
        }
    }

This does nothing. Any suggestions?

I would rather suggest an array_filter.

deceze
– deceze ♦

2017-06-21 11:08:01 +00:00
Commented Jun 21, 2017 at 11:08 — deceze
– deceze ♦, Commented Jun 21, 2017 at 11:08

Ryan Hipkiss · Accepted Answer · 2017-06-21 11:07:42Z

2

What you have tried will only unset the current object in the loop. You need to do the following:

foreach($response as $key => $res) {
    if($res->CardNumber != $cardnumber) {
        unset($response[$key], $res);
        continue;
    }
}

answered Jun 21, 2017 at 11:07

Ryan Hipkiss

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3 Comments

deceze Over a year ago

That continue is rather superfluous there.

Jacques Over a year ago

Thank you @Ryan Hipkiss - that works brilliantly. Will accept as soon as the timer allows me.

Ryan Hipkiss Over a year ago

@deceze put it in just to be sure xD

Aurasphere · Accepted Answer · 2017-06-21 14:38:49Z

-1

Use unset() inside the loop.

eg:

unset('key value', 'your array name');

edited Jun 21, 2017 at 14:38

Aurasphere

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answered Jun 21, 2017 at 11:17

AKSHAT GUPTA

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