Unable to figure out why nothing displays

Hi I am working through a book to get a better grasp of using php in web development. Leading up to the issue I am having I learned the very basics of creating a database and table in that database through mysql in the linux prompt and all went well there. From there I transfered the database to phpmyadmin on my localhost lampp.

Currently I am working through an example that is a small single page php program inside html that is suppose to output the data in the database I created earlier, onto a webpage. In addition the the data it is suppose to output there is suppose to be a form at the top of the page where you can add new entries and delete them.

I was able to work through a previous example that outputs the same database data to a webpage and it outputs without issue. When I load the current example that has a form though, nothing shows on the page. All I get from chrome is “localhost is currently unable to handle this request”. I have tirelessly checked for syntax errors and am at a loss for why nothing loads. Any help would be greatly appreciated.
This is the code in the index.php. I understand it ins’t secure code but i’m only using it for learning.

 require_once 'login.php';
 $conn = new mysqli($hn, $un, $pw, $db);
 if ($conn->connect_error) {
 die("Fatal Error"); }

 if (isset($_POST['delete']) && isset($_POST['isbn']))
$isbn   = get_post($conn, 'isbn');
$query  = "DELETE FROM classics WHERE isbn='$isbn'";
$result = $conn->query($query);  
if (!$result) echo "DELETE failed<br><br>";

if (isset($_POST['author'])    &&      
    isset($_POST['title'])     &&
    isset($_POST['category'])  && 
    isset($_POST['year'])      &&
  $author   = get_post($conn, 'author');
  $title    = get_post($conn, 'title');
  $category = get_post($conn, 'category');
  $year     = get_post($conn, 'year');
  $isbn     = get_post($conn, 'isbn');
  $query    = "INSERT_INTO classics VALUES" .
          "('$author', '$title', '$category', '$year', '$isbn')";
  $result = $conn->query($query);
  if (!$result) {
    echo "INSERT failed<br><br>";
echo <<<_END
<form action="index.php" method="post"<pre>
Author <input type="text" name="author">
Title <input type="text" name="title">
Category <input type="text" name="category">
Year <input type="text" name="year">
  ISBN <input type="text" name="isbn">
       <input type="submit" value="ADD RECORD">

$query  = "SELECT * FROM classics";
$result = $conn->query($query);
if (!$result) {
die("Database access failed");

$rows = $result->num_rows;

for ($j = 0 ; $j < $rows ; ++$j)
$row = $result->fetch_array(MYSQLI_NUM);

$r0 = htmlspecialchars($row[0]);
$r1 = htmlspecialchars($row[1]);
$r2 = htmlspecialchars($row[2]);
$r3 = htmlspecialchars($row[3]);
$r4 = htmlspecialchars($row[4]);

echo <<<_END
Author   $r0
Title    $r1
Category $r2
Year     $r3
ISBN     $r4 
<form action='index.php' method='post'>
<input type='hidden' name='delete' value='yes'>
<input type='hidden' name='isbn' value='$r4'>
<input type='submit' value='DELETE RECORD'></form>


function get_post($conn, $var)
return $conn->real_escape_string($_POST[$var]);


my login.php is:

<?php // login.php
$hn = 'localhost';
$db = 'publications';
$un = 'root';
$pw = '';

* Admin added code tags

First step, check your web server is working. Replace your above code with:


If everything is working, this will print a load of configuration for PHP. If it works, that means there’s a problem with your code.

If it is a problem with your code, PHP can display errors to help you track it down. The first step here will help you with your error settings.

Thank you, turning on errors helped me get it figured it out. It turns out it was mainly a formatting issue, something with tabs and spaces. I had no idea formatting was as critical in php as it appears to be.

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