Let's assume I have an array of object properties I'd like to access:

$properties = array('foo', 'bar');

I'd like to loop through the object and access these properties dynamically (specifically, I'm trying to dynamically handle missing JSON elements based on an array of expected elements):

foreach ($data as $item) {
    foreach ($properties as $property) {
        if (empty($item->{$property})) {
            // Do something
        }
    }
}

Each $item in $data should have the properties 'foo' and 'bar'. If empty(), I'll handle them.

I'm trying to get the loop (in line 3) to access $item->{'foo'} and $item->{'bar'}, but it's not working.

Any idea why?

Thanks!