--- /dev/null
+<?php
+$form_email = filter_input(INPUT_POST, "email", FILTER_VALIDATE_EMAIL);
+$form_password = filter_input(INPUT_POST, "password", FILTER_SANITIZE_STRING);
+
+if (!$form_email) {
+ echo "The email is not valid <br>";
+} else {
+ $sql_pquery = "select count(NumCI) from CLIENTS where EmailCI = ?";
+
+ echo "This email do not belong to a registred client, please register first <br>";
+
+ if (password_verify($form_password, $stored_password)) {
+
+ }
+}
+?>