La parte de validación de mi jQuery funciona, sin embargo, la parte AJAX no parece estar haciendo nada y me pregunto por qué. Sale sin errores y el registro funciona perfecto sin el AJAX, sin embargo, tengo que usarlo.

Formulario HTML en register.php:

 <form method="post" action="register.php" name="registration-form" id="register-form"> <div class="form-group" id="email-group"> <label for="email"> Email address </label> <input id="email" type="email" name="email" class="form-control" aria-describedby="emailHelp" required> </div> <div class="form-group" id="password-group"> <label for="password"> Password </label> <input id="password" type="password" name="password" class="form-control" required> </div> <div class="form-group form-check"> <input type="checkbox" name="terms" class="form-check-input" required> I accept the <a class="privacy-link" href="privacy-policy.php"> Privacy Policy </a> </div> <button type="submit" name="register_user" class="btn btn-primary" value="register_user">Register</button> </form>

jQuery con AJAX:

 $(document).ready(function () { $("#register-form").submit(function (event) { event.preventDefault(); }).validate({ rules: { email: { minlength: 6 }, password: { minlength: 8 } }, messages: { email: "Email should be at least 6 characters", password: "Password should be at least 8 characters" }, submitHandler: function (form) { var email = $("#email").val(); var password = $("#password").val(); $.ajax({ url: "register.php", contentType: "application/json", type: "POST", data: { email: email, password: password } }).done(function (response) { // some actions }); } }); });

register.php PHP para manejarlo:

 if (isset($_POST['register_user'])) { /* Others */ }

Probé varios "isset", pero fue en vano.