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Output for 8.1.17 - 8.1.32, 8.2.5 - 8.2.28, 8.3.0 - 8.3.20, 8.4.1 - 8.4.6
array ( 0 => true, 1 => 1, 2 => 'foo<bar', 3 => 'foo<baz', 4 => array ( 0 => 'foo<loo', ), 5 => (object) array( '1' => 'foo<boo', ), )

preferences:
74.31 ms | 411 KiB | 5 Q