<?php $_POST['Type'] = ''; $_POST['Company'] = 'Cloud Inc.'; $_POST['InvoiceNumber'] = 'AB-333'; $_POST['Price'] = '100'; $_POST['Date'] = NULL; $non_empty_element = array_filter($_POST); $empty_element = array_diff($_POST,$non_empty_element); print_r($empty_element); ?>
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Value for `_results` contains invalid data `array`