tryphp_func_filter_input.php:
<!DOCTYPE html> <html> <body> <form method="get" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>"> E-mail: <input type="text" name="email"> <input type="submit" name="submit" value="Submit"> </form> <?php if (isset($_GET["email"])) { if (!filter_input(INPUT_GET, "email", FILTER_VALIDATE_EMAIL) === false) { echo("Email is valid"); } else { echo("Email is not valid"); } } ?> </body> </html>
E-mail: