How to convert an integer to an array in PHP?

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You can use str_split and intval:

$number = 2468;

    $array  = array_map('intval', str_split($number));

var_dump($array);

Which will give the following output:

array(4) {
  [0] => int(2)
  [1] => int(4)
  [2] => int(6)
  [3] => int(8)
}

Demo

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