php echo并加入mysql数据库

Question

I have been trolling the internet for the solution to my issue. I am teaching myself relationship databasing and trying to echo this on my webpage. but it is not echoing :(

please can a fresh pair of eyes take a look at my code and point me in the right direction. many thanks

I have been trying to do a test run before editing for my own purposes

database: fault
table: user
collumns: id name course 
foreign key(fk_course)fault,course,id
table: course
Collumns: id coursename

Code:

<?php
require 'connection.php';

//where statement in the sql syntax will select where in db to get infor, use AND to add another condition
$result = mysqli_query($con,"SELECT user.name, course.coursename FROM 'user' INNER JOIN 'course' ON user.course = coursename.id"); //this creates a variable that selects the database

echo "<table border='1'>
<tr>
<th>Name</th>
<th>Course</th>
</tr>";
while ($row = mysqli_fetch_array($result)) {
  echo "<tr>";
  echo "<td>" . $row['name'] . "</td>";
  echo "<td>" . $row['coursename'] . "</td>";
  echo "</tr>";
}
echo "</table>";
?>

Answer 1

You SQL statment should look like this:

SELECT user.name,
       course.coursename
  FROM user INNER JOIN course ON user.course = course.id;

Use normal aposthropes for strings and the ON part should correctly match the fields.