如何从数组中获取非空数组

Question

The Array contains some non-empty arrays . i need to fetch respective non-empty array and print the data . eg: array 2 has variable as importTroubles->troubleMessage how can i print that?

Array
(
 [0] => stdClass Object
    (
    )

[1] => stdClass Object
    (
    )

[2] => stdClass Object
    (
        [return] => stdClass Object
            (
                [failureMessage] => 
                [importTroubles] => stdClass Object
                    (
                        [kind] => ParseError
                        [rowNumber] => 1
                        [troubleMessage] => Field "number1" has invalid value: "+16046799329". Invalid phone number //need to print this..
                    )

                [keyFields] => number1
                [uploadDuplicatesCount] => 0
                [uploadErrorsCount] => 1
                [warningsCount] => stdClass Object
                    (
                    )

                [callNowQueued] => 0
                [crmRecordsInserted] => 0
                [crmRecordsUpdated] => 2
                [listName] => new camp from CRM1-TargetList-CRM
                [listRecordsDeleted] => 0
                [listRecordsInserted] => 2
            )

    )

[3] => stdClass Object
    (
    )

[4] => stdClass Object
    (
    )

)

im trying with this method :

foreach($result as $object) {
foreach ($object as $items) {

    if($items !== '')
    {
        foreach ($items as $item) {
            echo "ERROR".$item->troubleMessage;
        }
    }

}
}

Thanks for your efforts

Answer 1

Make use of php function empty()

Change your if condition as in below code :

foreach($result as $object) {
 foreach ($object as $items) {
    if( !empty($items) )
    {
        foreach ($items as $item) {
          if( isset($item->troubleMessage) )
          {
            echo "ERROR".$item->troubleMessage;
          }
        }
    }
 }
}

Now it will echo only if $items has values.

Answer 2

将您的if($items !== '')更改为if(!empty($items))或if($items)或if($items[0])希望对您有所帮助

Answer 3

You don't have to iterate each object if you're only looking for a single specific item nested within it. You can just refer to that item directly.

foreach ($your_array as $object) {
    if (isset($object->return->importTroubles->troubleMessage)) {
        echo $object->return->importTroubles->troubleMessage;
    }
}

If you check if that specific nested object variable is set, it will ignore any empty objects.

Answer 4

You could use Collection

use Illuminate\Support\Collection;

$collection = new Collection($result);

$items = $collection->filter(function($object) {

    return isset($object->return->importTroubles->troubleMessage);

})->map(function($object) {

    return $object->return->importTroubles->troubleMessage;

});