3v4l.org

run code in 300+ PHP versions simultaneously
<?php $query = [ 'set1' => ['col1' => 'val1', 'col2'=> 'val2'], 'set2' => ['col1' => 'val3', 'col2'=> 'val4']]; var_dump($query['set1'] === $query['set2']);

preferences:
56.29 ms | 402 KiB | 5 Q