Question

I have an array like so:

array(2) {
  [0]=>
  array(4) {
    [0]=>
    string(6) "04ba2c"
    [1]=>
    string(6) "f4a204"
    [2]=>
    string(6) "d40604"
    [3]=>
    string(6) "990000"
  }
  [1]=>
  array(4) {
    [0]=>
    string(6) "666666"
    [1]=>
    string(6) "666666"
    [2]=>
    string(6) "666666"
    [3]=>
    string(6) "666666"
  }
}

I would like to build the array so that it appears like so but I am not sure how to do this?

array(1) {
  [0]=>
  array(8) {
    [0]=>
    string(6) "04ba2c"
    [1]=>
    string(6) "666666"
    [2]=>
    string(6) "f4a204"
    [3]=>
    string(6) "666666"
    [4]=>
    string(6) "d40604"
    [5]=>
    string(6) "666666"
    [6]=>
    string(6) "990000"
    [7]=>
    string(6) "666666"
  }

Any ideas to easily do this in PHP?

Answer 1

for ($i = 0, $len = count($array[0]); $i < $len; ++$i) {
    $result[] = $array[0][$i];
    $result[] = $array[1][$i];
}

or, if the two arrays are not of equal length, you can loop until you reach the highest value and only add the found items:

for ($i = 0, $len = max(count($array[0]), count($array[1])); $i < $len; ++$i) {
    if (isset($array[0][$i])) $result[] = $array[0][$i];
    if (isset($array[1][$i])) $result[] = $array[1][$i];
}