--- /dev/null
+<?php
+$form_email = filter_input(INPUT_POST, "email", FILTER_VALIDATE_EMAIL);
+$form_password = filter_input(INPUT_POST, "password", FILTER_VALIDATE_STRING);
+
+if (!form_email) {
+ echo "The email " .$form_email . " is not valid";
+} else {
+ $sql_pquery = "select count() from Client where EmailCI = ?";
+}
+
+?>