Question

I have created an SQL function SQLquery in a class called SQLHandling
It looks like this:

 /***********************************************************
    * SQLquery takes a full SQL query and runs it
    * If it fails it will return an error otherwise it will return
    * the SQL query as given.
    ************************************************************/   
    function SQLquery($query)  { 

        $q = mysql_query($query);

        if(!$q) {
            die(mysql_error());
            return false;
        } else {
            return $q;          
        }
    }

Is there anyway I can use this function in other classes functions without adding

$db = new SQLHandling();
$db->SQLquery($sql);

In every function where I will use it.

I know I can run SQLHandling::SQLquery($sql); but I am trying to avoid that.

Answer 1

You could instantiate SQLHandling on class level, like so:

    private $db;

    public function __construct()
    {
        $this->db = new SQLHandling();
    }

    public function x()
    {
        $this->db->query('X');
    }