- Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- array(1) { ["a"]=> int(1) } array(1) { ["a"]=> int(3) }
<?php
$foo = ['a' => 1];
$bar = ['a' => 2];
$baz = ['a' => 3];
var_dump($foo + $bar + $baz);
var_dump(array_merge($foo, $bar, $baz));