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Best way to convert an array of arrays to one array

I want to convert

$array_of_arrays = [[1,2,3],[4,5,6],[7,8],[9,10]];

IN

 $array = [1,2,3,4,5,6,7,8,9,10];

I can use

    $array = [];
 foreach($array_of_arrays as $one_array):
    $array = array_merge($array,$one_array);
   endforeach;

But I have a very long array of arrays, is there any function (method) to do this without a foreach loop

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3 answers


Function call_user_func_array

:

$array_of_arrays = [[1,2,3],[4,5,6],[7,8],[9,10]];
$result = call_user_func_array("array_merge", $array_of_arrays);
print_r($result);


Output:

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
    [5] => 6
    [6] => 7
    [7] => 8
    [8] => 9
    [9] => 10
)
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You can use array_merge

with call_user_func_array

:



$res = call_user_func_array('array_merge', $array_of_arrays);
var_dump($res);

array(10) {
  [0] =>
  int(1)
  [1] =>
  int(2)
  [2] =>
  int(3)
  [3] =>
  int(4)
  [4] =>
  int(5)
  [5] =>
  int(6)
  [6] =>
  int(7)
  [7] =>
  int(8)
  [8] =>
  int(9)
  [9] =>
  int(10)
}
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// Using array_merge with call_user_func_array

        $array_of_arrays = [[1,2,3],[4,5,6],[7,8],[9,10]];  
        $oneDimensionalArray = call_user_func_array('array_merge', $array_of_arrays);
        print_r( $oneDimensionalArray);

// The output will be: Array ([0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [ 7] => 8 [8] => 9 [9] => 10)

// More about call_user_func_array () PHP call_user_func with class and arguments

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