PHP Spread Syntax in Array Declaration

Question

PHP supports the spread syntax for variadic functions.

In JavaScript, you can use the spread syntax to do this:

var a = [1, 2];
var b = [...a, 3, 4];         


        

Answer 1

Below PHP 7.4

$mainArray = ['element1', 'element2'];
$finalArray = array_merge($mainArray, ['element3']);
print_r($finalArray);
// Final array would be ['element1', 'element2', 'element3'];

In or Above PHP 7.4

$mainArray = ['element1', 'element2'];
$finalArray = [...$mainArray, 'element3'];
print_r($finalArray);
// Final array would be ['element1', 'element2', 'element3'];