GLOBAL variable

[eluser]Unknown[/eluser]
Hi! i would like to ask if there is a workaround in CI in using global variable that we can call in a function and forgets the global var value after the page execution.
code below

<code>
$g_bar = '';

function do_x()
{
global $g_bar;

for( $i=0, $a=func_num_args(); $i<$a; $i++ ){
$args = func_get_arg($i);
$g_bar .= 'nice '. $args. '<br />';
}
}

....

do_x( 'a', 'b', 'c');
....
echo $g_bar;

</code>


i know i can compute the value in the controller. but this one i put in view.
your enlightenment is very much appreciated.