php array flatten all sub arrays items

106

array_merge(...$a);

$a = [[10, 20], [30, 40]];
$b = [["x" =&gt; "X", "y" =&gt; "Y"], ["p" =&gt; "P", "q" =&gt; "Q"]];

print_r(array_merge(...$a));
print_r(array_merge(...$b));

Array
(
    [0] =&gt; 10
    [1] =&gt; 20
    [2] =&gt; 30
    [3] =&gt; 40
)
Array
(
    [x] =&gt; X
    [y] =&gt; Y
    [p] =&gt; P
    [q] =&gt; Q
)

$a = [[10, 20], [30, 40]];
$b = [["x" =&gt; "X", "y" =&gt; "Y"], ["p" =&gt; "P", "q" =&gt; "Q"]];

print_r(array_merge(...$a));
print_r(array_merge(...$b));

Array
(
    [0] =&gt; 10
    [1] =&gt; 20
    [2] =&gt; 30
    [3] =&gt; 40
)
Array
(
    [x] =&gt; X
    [y] =&gt; Y
    [p] =&gt; P
    [q] =&gt; Q
)

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php array flatten all sub arrays items

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