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<?php $rss = (object) [ 'items' => [ ['foo' => 'bar1'], ['foo' => 'bar2'], ['foo' => 'bar3'], ], ]; $feedId = 42; $rss->items = array_map( fn($item) => $item + ['feed_id' => $feedId], $rss->items ); var_export($rss);

This is an error 500

Value for `_results` contains invalid data `array`


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