Why Does PHP Return “Resource Id #2” Or “Resource Id #3”?

Problem scenario
In a LAPP stack deployment, a PHP variable is displaying a value "Resource id #2" or "Resource id #3."  You are expecting a different value.  The PHP variable having the problem is the result of a SQL command ran against a PostgreSQL database.  What should you do?

Solution
Assuming that $var1 is displaying the undesirable "Resource id #2" or "Resource id #3", do something like this:

   $var1 = pg_query($query);
   $rowa = pg_fetch_row($var1);
   $rowb = current($rowa);

Now use $rowb in the capacity you were trying to use $var1.  It should display a human readable value.