php data input into MySQL when submitting form

Question

I've successfully been able to input data into my MySQL database but having trouble inserting the data when submitting the form. At the moment, blank data will insert whenever i load the register.php page. I read that I need to possibly put this code in a separate document containing ONLY the php code. I tried that and added that page to the form action. It redirected to the proccess.php page but didn't actually insert the data. here is my php:

<?php
  $servername = "localhost";
  $username = "root";
  $password = "@Passw0rd";
  $dbname = "accounts";

  // Create connection
  $conn = mysqli_connect($servername, $username, $password, $dbname);
  // Check connection
  if (!$conn) {
      die("Connection failed: " . mysqli_connect_error());
  }

  $name = mysqli_real_escape_string($link, $_REQUEST['Ausername']);
  $email = mysqli_real_escape_string($link, $_REQUEST['email']);
  $userPassword = mysqli_real_escape_string($link, $_REQUEST['Apassword']);

  $sql = "INSERT INTO users (username, email, password)
  VALUES ('$name', '$email', '$userPassword')";

  if (mysqli_query($conn, $sql)) {
      echo "New record created successfully";
  } else {
     echo "Error: " . $sql . mysqli_error($conn);
  }

  mysqli_close($conn);
?>

and my form:

<form class="form-inline" action="register.php" method="post">
    <div class="input-group">
        <span class="input-group-addon"><i class="fa fa-user"></i></span>
        <input type="text" class="form-control" id="Ausername" placeholder="Username" name="Ausername" required>
    </div>
    <br> <br>
    <div class="input-group">
        <span class="input-group-addon"><i class="glyphicon glyphicon-envelope"></i></span>
        <input type="text" class="form-control" id="email" placeholder="Email" name="email" required>
    </div>
    <br> <br>
    <div class="input-group">
        <span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i></span>
        <input type="text" class="form-control" id="Apassword" placeholder="Password" name="Apassword" required>
    </div>
    <br> <br> <br>
    <button type="submit" class="btn btn-primary" id="button" name="submit" value="submit">
        <i class="fa fa-user-plus"></i> Sign Up
    </button>
    <br> <br>
</form>

Answer 1

use $_POST instead of $_REQUEST and try

  $name = mysqli_real_escape_string($link, $_POST['Ausername']);
  $email = mysqli_real_escape_string($link, $_POST['email']);
  $userPassword = mysqli_real_escape_string($link, $_POST['Apassword']);

Answer 2

your form action "POST", you should retrieve data using $_POST.

My condition of IF statement , all values are mandatory , you can edit that of your own .

 <?php
      $servername = "localhost";
      $username = "root";
      $password = "@Passw0rd";
      $dbname = "accounts";

      // Create connection
      $conn = mysqli_connect($servername, $username, $password, $dbname);
      // Check connection
      if (!$conn) {
          die("Connection failed: " . mysqli_connect_error());
      }

    if (isset($_POST["submit"]) && !empty($_POST["Ausername"] && !empty($_POST["email"] && !empty($_POST["Apassword"])) {
      $name = mysqli_real_escape_string($link, $_POST['Ausername']);
      $email = mysqli_real_escape_string($link, $_POST['email']);
      $userPassword = mysqli_real_escape_string($link, $_POST['Apassword']);
      }else {
   // redirect to form page 
      }
      $sql = "INSERT INTO users (username, email, password)
      VALUES ('$name', '$email', '$userPassword')";

      if (mysqli_query($conn, $sql)) {
          echo "New record created successfully";
      } else {
         echo "Error: " . $sql . mysqli_error($conn);
      }

      mysqli_close($conn);
    ?>

Answer 3

please first before keeping data from a form in variable first check if post is submitted and chek the codes below

<?php
      if(isset($_POST['submit']){
           $name = mysqli_real_escape_string($link, $_POST['Ausername']);
          $email = mysqli_real_escape_string($link, $_POST['email']);
         $userPassword=mysqli_real_escape_string($link,$_POST['Apassword']);
    $query="INSERT INTO users(username, email, password) 
                         VALUES('$name','$email','$userPassword')";
if($query){
   ?>
 <script>
  alert("record added");
  window.location="index.php";//where index.php is a page with your html codes
</script>
}
else
   die(mysqli_error($link));
<?php
 }
?>

or you can user unset($_POST); after inserting data from data it it help please notify us thanks but rember to use $_POST instead of $_REQUEST