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run code in 300+ PHP versions simultaneously
<?php $struct = [ 'username' => '', 'password' => '', 'someId' => 1, ]; $input = [ 'username' => '', 'password' => '', 'someId' => 1, ]; var_dump(arra_diff($struct, $input)); //var_dump(array_diff(array_merge($input, $struct), $struct));

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