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barraclm

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  1. Thanks to everyone who replied. I am now sorted. I have brought better clarity to the structure of my application and that has helped me see some problems that I was causing myself.
  2. My script has 3 classes (that are relevant to this discussion): DB, User and Validate. They are all in independent files and loaded automatically, when required, by an autoloader. Both the User class and the Validate class have a private variable $_db which is instantiated by their class constructor: $this->_db = DB::getInstance(); At the top of the script I declare new instances: $user = new User(); and $validate = new Validate(); I then call a method in $user: $found = $user->findInUsers ( .... ) From within the findInUsers method I then want to call the query method in the DB class. My problem is that I can't find a way to do this that works. I have tried $this->_db->query( ... ), $_db->query( ... ), but neither works. The error messages I am getting are: An error occurred in script '/srv/http/classes/User.php' on line 42: Undefined variable $_db Uncaught Error: Call to a member function query() on null in /srv/http/classes/User.php:42 Any pointers as to what I am doing wrong, or what I should be doing, would be most welcome.
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