+<?php
+$form_name = filter_input(INPUT_POST, "name", FILTER_SANITIZE_STRING);
+$form_firstname = filter_input(INPUT_POST, "firstname", FILTER_SANITIZE_STRING);
+$form_numstreet = filter_input(INPUT_POST, "numstreet", FILTER_VALIDATE_INT);
+$form_street = filter_input(INPUT_POST, "street", FILTER_SANITIZE_STRING);
+$form_postalcode = filter_input(INPUT_POST, "postalcode", FILTER_VALIDATE_INT);
+$form_town = filter_input(INPUT_POST, "postalcode", FILTER_SANITIZE_STRING);
+$form_email = filter_input(INPUT_POST, "email", FILTER_VALIDATE_EMAIL);
+$form_password = filter_input(INPUT_POST, "password", FILTER_SANITIZE_STRING);
+$form_confirmpassword = filter_input(INPUT_POST, "confirmpassword", FILTER_SANITIZE_STRING);
+
+$error_numstreet = false;
+$error_postalcode = false;
+$error_email = false;
+$error_password = false;
+
+if (!$form_numstreet) {
+ echo "The street number is not valid <br>" ;
+ $error_numstreet = true;
+}
+if (!$form_postalcode) {
+ echo "The postal code is not valid <br>";
+ $error_postalcode = true;
+}
+if (!$form_email) {
+ echo "The email is not valid <br>";
+ $error_email = true;
+}
+if (strcmp($form_password, $form_confirmpassword) === 0) {
+ echo "Password do not match <br>";
+ $error_password = true;
+}
+
+if (!empty($form_name) && !empty($form_firstname) && !empty($form_numstreet) && !empty($form_street) &&
+ !empty($form_postalcode) && !empty($form_town) && !empty($form_email) && !empty($form_password)){
+ global $connection;
+ $sql_pquery = "select count(NumCl) from CLIENTS where EmailCl = ?";
+ $stmt = $connection->prepare_query($sql_pquery);
+ $stmt->bind_param("s", $form_email);
+ //$connection->prepared_query_bind_param("s", $form_email);
+ $connection->run_prepared_query();
+ $connection->close_prepared_query();
+}
+?>