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<?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); ?>
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [Type] => [Date] => )
preferences:
104.84 ms | 1626 KiB | 4 Q