PSET 7 Index.php Fatal error: Call to undefined function query()

Question

Fatal error: Call to undefined function query() in /home/ubuntu/workspace/pset7/public/index.php on line 8.

<?php
// configuration
require("../includes/config.php"); 

if(isset($_SESSION["id"]))
{
    // get user cash
    $rows = query("SELECT * FROM users WHERE id = ?", $_SESSION["id"]);

I keep getting caught up when I process query in the index part of pset7. Not sure why it is undefined since I am requiring the file that refers to it. Any help would be greatly appreciated. I have been copying and pasting solutions from others to see if I had something buggy in my code, however, even other solutions get caught up at query with the same error!

Answer 1

query() is defined in the CS50 PHP library, so you need to put CS50::query(whatever) instead of just query. PHP isn't quite as smart with included libraries as C is apparently. :)