从使用foreach创建的数组中排除一些$ _POST

The goal is sanitize the $_POST data collected from a form, but in this form i have a input field with date (d/m/Y) and i need to use preg_replace() before save it in to the database. Also i have a input with euro value (1.000,00) and i need to use also preg_replace for modify the value.The goal is sanitize the $_POST data collected