Remove duplicated key in defined arrays.
$item = [
- 1 => 'A',
1 => 'B'
];Configure your rector.php:
<?php
use Rector\Config\RectorConfig;
use Rector\DeadCode\Rector\Array_\RemoveDuplicatedArrayKeyRector;
return RectorConfig::configure()
->withRules([
RemoveDuplicatedArrayKeyRector::class,
]);