$ _POST数组为空，我得到了未定义的变量错误

Question

Sorry to ask it again, but I checked almost all the q&a's on the topic and still couldn't solve it. Here is my form.php and creditform.php

Edit1.Changed the .get to .post

Edit2.I'm getting errors of undefined variable "name" "email" "address" "income" etc (in short for all of them) in creditform.php What I want to do is just insert all the inputs into the table in db.

HTML

<!-- End crumbs-->
            <div class="container wrap wow fadeInUp">
            <div class="row">
            <div class="col-sm-5 col-md-6 left-app">
            <form id="form" action="php/creditform.php" method="post">
                <input type="text" placeholder="Name" name="name" required>
                <input type="email" placeholder="Email"  name="email" required>
                <input type="text" placeholder="Address"  name="address" required>
                <input type="number" placeholder="Monthly income before taxes"  name="income" required>
                <input type="number" placeholder="Amount Needed"  name="amount_needed" required>
                <input type="number" placeholder="Phone"  name="phone" required>
             <div class="row">
             <div class="container">
                <input type="submit" name="submit" value="Submit" class="button"></div></div>
             <div id="result"></div>  
            </form> 
            </div>
                <script>
                $(document).ready(function($) {
                   'use strict';

                $('#form').submit(function(event) {  
                   event.preventDefault();  
                   var url = $(this).attr('action');  
                   var datos = $(this).serialize();  
                   $.post(url, datos, function(resultado) {  
                   $('#result').html(resultado);  
                   });  
               });
                </script>

FORM.PHP

<?php

include('db.config.php');

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
   $name = $email = $address = $income = $amount_needed = $phone = '';

if(isset($_POST['submit'])){

   $name = addslashes($_POST['name']);
   $email = addslashes($_POST['email']);
   $address = addslashes($_POST['address']);
   $income = addslashes($_POST['income']);
   $amount_needed = addslashes($_POST['amount_needed']);
   $phone = addslashes($_POST['phone']);

// check form fields
if(empty($name)){
    $error .= 'Enter name <br />';
}
if(empty($email)){
    $error .= 'Enter email <br />';
}
// check if errors exist
if(!empty($error)){
    echo $error;    
} else {
    // process form as normal   

    $sql = "INSERT INTO `" . DBN . "`.`creditapp` (`name`, `email`, `address`, `income`, `amount_needed`, `phone`) VALUES ('$name', '$email', '$address', '$income', '$amount_needed', '$phone')";
    $db->Query($sql);
}
}
} 
print_r($_POST);

?>

CREDITFORM.PHP

<?php
if(isset($_POST['submit'])){

   $name = $_POST['name'];
   $email = $_POST['email'];
   $address = $_POST['address'];
   $income = $_POST['income'];
   $amount_needed = $_POST['amount_needed'];
   $phone = $_POST['phone'];
}
print_r($_POST);


?>

It's obvious that I'm missing something, please correct me... Thanks for your time

Answer 1

Okay, I practiced more on ajax - json - php and in the end this was my solution and my latest code.

Thanks for all answers and suggestions. Hope this also helps to someone.

Still open to any kind of advice to improve.

<?php

include('db.config.php');

if(isset($_POST['submit'])){


$name = addslashes($_POST['name']);
$email = addslashes($_POST['email']);
$address = addslashes($_POST['address']);
$income = addslashes($_POST['income']);
$amount_needed = addslashes($_POST['amount_needed']);
$phone = addslashes($_POST['phone']);

// process form as normal   

$sql = "INSERT INTO `" . DBN . "`.`creditapp` (`name`, `email`, `address`, `income`, `amount_needed`, `phone`) VALUES ('$name', '$email', '$address', '$income', '$amount_needed', '$phone')";
$db->Query($sql);

die();

<div class="container wrap wow fadeInUp">
     <div class="row">
     <div class="col-sm-5 col-md-6 left-app">
        <form id="form" action="creditapp.php" method="post">
          <input type="text" placeholder="Name" name="name" id="name" required>
          <input type="email" placeholder="Email"  name="email" id="email" required>
          <input type="text" placeholder="Address"  name="address" id="address" required>
          <input type="text" placeholder="Monthly income before taxes" id="income" name="income" required>
          <input type="text" placeholder="Amount Needed"  name="amount_needed" id="amount_needed" required>
          <input type="text" placeholder="Phone"  name="phone" id="phone" required>
        <div class="row">
        <div class="container">
          <input type="submit" name="submit" value="Submit" class="button sub"></div>
        </div>
        </form> 
        </div>

   <script>
   $(document).ready(function() {

   $('.sub').click(function(e){
       e.preventDefault();
        var name = $('#name').val(),
            email = $('#email').val(),
            address = $('#address').val(),
            income = $('#income').val(),
            amount_needed = $('#amount_needed').val(),
            phone = $('#phone').val();


        $.ajax({
            url: "creditapp.php",
            type: "POST",
            data: {
                name: name,
                email: email,
                address: address,
                income: income,
                amount_needed: amount_needed,
                phone: phone,
                submit: "submit"
            }

            }).done(function(msg){
              $('.right-info').html('<pre>' + msg + '</pre>');
            })
       })
   });
</script>