Видалення нульових елементів у php масиві - php, масиви

Як я можу видалити null у наступному масиві php? Чи може хто-небудь допомогти мені pease?

{
"total": 20,
"memberships": [
"channel-568e2ec856e52816891757",
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[
""
]
]
}

Відповіді:

Просто використовуй array_filter:

array_filter($array)

array_filter зберігає будь-який елемент оцінюється як true в масиві. Він повертає новий масив.

array_filter може видалити порожні рядки, помилкові значення та нулі з вашого масиву:

$entry = array(
0 => "foo",
1 => false,
2 => -1,
3 => null,
4 => ""
);

print_r(array_filter($entry));

виведе:

Array
(
[0] => foo
[2] => -1
)

Більш того, ви можете визначити власний фільтр і викликати array_filter з функцією зворотного виклику з бажаною фільтрацією:

function odd($var)
{
// returns whether the input integer is odd
return($var & 1);
}

function even($var)
{
// returns whether the input integer is even
return(!($var & 1));
}

$array1 = array("a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5);
$array2 = array(6, 7, 8, 9, 10, 11, 12);

echo "Odd :n";
print_r(array_filter($array1, "odd"));
echo "Even:n";
print_r(array_filter($array2, "even"));

виведе:

Odd :
Array
(
[a] => 1
[c] => 3
[e] => 5
)
Even:
Array
(
[0] => 6
[2] => 8
[4] => 10
[6] => 12
)

Вам потрібно буде повторно шукати та видаляти кожен елемент. Може бути, такий підхід, як цей (увага - я не тестував код, і я НЕ програміст php):

function RemoveNull($array)
{
foreach ($array as $key => $value)
{
if (is_array($value))
{
RemoveNull($value);
}

if ($value == null)
{
unset($array[$key]);
}
}
}