اضافة الكود التالي الى فنكنشن السيم
add_action('woocommerce_checkout_process', 'validate_egyptian_phone_number');
function validate_egyptian_phone_number() {
if (isset($_POST['billing_phone'])) {
$phone = $_POST['billing_phone'];
// Regex to match 11-digit Egyptian phone numbers starting with 010, 011, 012, or 015
if (!preg_match('/^01[0125][0-9]{8}$/', $phone)) {
wc_add_notice(__('Please enter a valid Egyptian phone number starting with 010, 011, 012, or 015.'), 'error');
}
}
}