In PHP, using array slices makes it easier to code through the array_slice function.

Question

I have two arrays and need to display the elements of each array based on their total number of elements.

In this way, the elements of array 1 will be displayed in order of the total number of elements, and the elements of array 2 will only display 1 element.

array1 = [1, 2, 3, 4];
array2 = [1, 2, 3, 4];

if (count($array2) >= 2) {
    $array1 = array_slice($array1 , 0, 2);
} else if (count($array2 ) === 1) {
    $array1 = array_slice($array1 , 0, 3);
}

if (count($array1) >= 2) {
    $array2 = array_slice($array2 , 0, 2);
} else if (count($array1 ) === 1) {
    $array2 = array_slice($array2 , 0, 3);
}

This is valid code, but what's the problem? Is it possible to simplify counting the number of array elements and not require more than 4 lines of code?

Answer 1

This is simpler:

$array1 = array_slice($array1, 0, count($array2) > 1 ? 2 : 3);
$array2 = array_slice($array2, 0, count($array1) > 1 ? 2 : 3);

I use thisTernary Operator.