I have empty array $one and $two
$one = [];
$two = [];
I have an array named alpabhet.
$alphabet = ["A", "B", "C", "D"];
Is it posible to get the array like this:
$one = [
0 => "A",
1 => "C",
];
$two = [
0 => "B",
1 => "D",
];
Thanks!
You might use the modulo % operator:
$alphabet = ["A", "B","C","D"];
$one = [];
$two = [];
foreach ($alphabet as $k => $v) {
$k % 2 === 0 ? $one[] = $v : $two[] = $v;
}
print_r($one);
print_r($two);
Result
Array
(
[0] => A
[1] => C
)
Array
(
[0] => B
[1] => D
)
You can use array_filter() and see if the key is even or odd. Use the constant ARRAY_FILTER_USE_KEY to pass the key-value to the callback instead of the value. This will work since the array you declared is numerically indexed, starting from 0.
$alphabet = ["A", "B","C","D"];
$one = array_filter($alphabet, function($key) {
return !($key & 1); // Even keys
}, ARRAY_FILTER_USE_KEY);
$two = array_filter($alphabet, function($key) {
return $key & 1; // Odd keys
}, ARRAY_FILTER_USE_KEY);
This does however preserve the original keys of the array, so if you want to get the keys reassigned, you can use array_values() on the resulting array, see https://3v4l.org/jv0Od.
You can try to loop it like this
$alphabet = ["A", "B", "C", "D"];
$one = [];
$two = [];
foreach ($alphabet as $key => $val) {
if($key == 0 || ($key%2) == 0) {
$one[] = $val;
} else {
$two[] = $val;
}
}
echo "<pre>";
print_r($one);
print_r($two);
