Remove null elements array

Question

I have the array $wynik below.

How can I delete all keys with empty [id]??

I would like to refer to specific elements.

Array
(
    [0] => Array
        (
            [id] => 2531291225
            [ilosc] => 20
        )

    [1] => Array
        (
            [id] => 2531291312
            [ilosc] => 10
        )

    [2] => Array
        (
            [id] =>
            [ilosc] =>
        )
)

Solution:

foreach ($wynik as $key => $value) {
    if (is_array($value)) {
        foreach ($value as $key2 => $value2) {
            if (empty( $value2))
                unset($wynik[$key][$key2]);
        }
    }
    if (empty($wynik[$key]))
        unset($wynik[$key]);
}

Refer link for more details.

Vinay
– Vinay

2012-08-10 07:32:42 +00:00
Commented Aug 10, 2012 at 7:32 — Vinay
– Vinay, Commented Aug 10, 2012 at 7:32

Yoshi · Accepted Answer · 2012-08-10 07:26:37Z

3

$filtered = array_filter($wynik, function ($v) {
  return !empty($v['id']);
});

answered Aug 10, 2012 at 7:26

Yoshi

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6 Comments

damian Over a year ago

How refer to specific elements in my array??

Yoshi Over a year ago

@damian Sorry, I don't understand your question.

damian Over a year ago

I do update the database. For each element in the array I need to do an if statement. How? if (id = id && ilosc < ilosc ){}

Yoshi Over a year ago

@damian you mean, after the array has been stripped of emtpy elements?

damian Over a year ago

Can this be?: foreach( $wynik as $key => $value ) { //print_array($value); $ilosc = $wynik[$key]['ilosc']++; $id = $wynik[$key]['id']++; echo $ilosc .' - '. $id .'<br>'; }

|

Wenhuang Lin · Accepted Answer · 2012-08-10 07:30:33Z

0

$result=array();
foreach($wynik as $key=>$value)
{
    if($value['id']!=NULL)
        $result=array_merge($result,array($key=>$value));
}
var_dump($result);

answered Aug 10, 2012 at 7:30

Wenhuang Lin

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Comments

RDK · Accepted Answer · 2012-08-10 08:15:01Z

0

foreach( $wynik as $key => $value ) {
    if( is_array( $value ) ) {
        foreach( $value as $key2 => $value2 ) if(!empty($value2)) $Row[$key2] = $value2; 
    }
}

answered Aug 10, 2012 at 8:15

RDK

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