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

// configuration

    // 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!


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. :)

  • Ah, it has to do with classes. CS50:: means calling from inside the CS50 class. I really need to read up more on object oriented programming. Anyway, yeah, that's still what's needed. – Fobok Feb 22 '16 at 21:26

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