Array Unpacking with String Keys
Added in PHP 7.4:
<?php
$apples = [ '🍎', '🍏' ];
$fruits = [ '🍐', '🍑', ...$apples, '🍓', '🍅' ];
echo "Fruit salad: ", implode( '', $fruits ), "\n";
?>
Result:
Fruit salad: 🍐🍑🍎🍏🍓🍅
PHP 8.1 adds support for string keys
<?php
$apples = [ 'red' => '🍎', 'green' => '🍏' ];
$others = [ 'green' => '🍐', 'pink' => '🍑' ];
$fruits = [ ...$apples, ...$others ];
var_dump( $fruits );
?>
Result:
array(3) {
'red' => string(4) "🍎"
'green' => string(4) "🍐"
'pink' => string(4) "🍑"
}