static public function recordValues( array $vars )
    {
        foreach( $vars as $varName => $value )
        {
            self::$custom_variables[$varName] = $value;
        }
    }
static public function recordValues( array $vars )
    {
        foreach( $vars as $varName => $value )
        {
            self::$custom_variables[$varName] = $value;
        }
    }
static public function recordValues ( array $ vars ) { foreach ( $ vars as $ varName => $ value ) { self :: $ custom_variables [ $ varName ] = $ value ; } }
Record a list of values associated with a set of variables in a single call

@see recordValue

@deprecated it is now recommended to set up a class of your own as VariableProvider, and let the
extension call its measure() method
Record a list of values associated with a set of variables in a single call