====== getMedian ======
~~NOTOC~~
<WRAP right box>
== Syntax ==
   mixed getMedian {
         mixed string $table
         mixed string $column
         optional mixed string $where
  }
</WRAP>


Returns the median value of $column for $table, or false if an error occurs. 

The $where clause is optional, but if used, the WHERE statement must include the requested column  as in "WHERE name > 'A'". If an error occurs, false is returned.
------------------------------
==== Usage ====
<code php>
/*
 * Assumed database connection in $db
*/
$table = 'zip_codes';
$column = 'population';

$medianPopulation = $db->getMedian($table,$column);
</code>