title: PHP order by two columns added together
body: <p>I have put so much research into this but most posts don't understand what i mean. How can you do multiple database columns in a query?</p>
  
  <p>I have a table called users and two columns called wallet_cash and bank_cash and i then have a table in my admin cp with most cash. I want to do it ORDER BY wallet_cash + bank_cash </p>
  
  <p>Order by them two variables added together but how can i do this?</p>
  
  <p>My attempt so far</p>
  
  <pre><code>$result = mysql_query("SELECT * FROM users ORDER BY wallet_cash + bank_cash desc LIMIT 4");
  </code></pre>
  
  <p>But this just puts the same result as and doesn't add the bank_cash so like your just putting ORDER BY wallet_cash </p>