Please tell me what went wrong when the submission form is blank.

Question

<?php

if(trim($_POST['password']) != trim($_POST['repassword'])){

exit ("twice The password used is inconsistent, please return to the previous page");

}

$username = trim($_POST['username'] );

$password = md5(trim($_POST['password']));

$conn = mysqli_connect('localhost ','root','root','informationtest','3306');

if(mysqli_error($conn)){

mysqli_error($conn);

exit;

}

mysqli_select_db($conn,'my_my');

mysqli_set_charset($conn, 'utf8');

insert into informationtest (id,name,password,) value('','$username','$password');

?>

Answer 1

You accessed the file directly, not through the server

Answer 2

Then you have to look at the html to see if there is no name