PHP - 从2个数组获取非空值到1个数组

Question

Here's the situation: I have 2 arrays like so:

<?php
$array1 = [
    'key1' => 437776,
    'key2' => 'Bar',
    'key3' => ''
];
$array2 = [
    'key1' => '',
    'key2' => 'Bar',
    'key3' => 'Foo'
];

What I actually want is a magic_function that takes as params $array1 and $array2, and returns an array that does not contains any empty value (the values should be obtained from $array1 and $array2). In this case it will be:

$array_returned = [
    'key1' => 437776,
    'key2' => 'Bar',
    'key3' => 'Foo'
];

Thanks in advance

Answer 1

Actually, It could be done by using array_filter:

$array1 = array_filter([
    'key1' => 437776,
    'key2' => 'Bar',
    'key3' => ''
]);
$array2 = array_filter([
    'key1' => '',
    'key2' => 'Bar',
    'key3' => 'Foo'
]);
$array_returned = array_merge($array1, $array2);