Grabbing Data out of a multidimensional array

[cmdr_bond]

I am a newbie at working with arrays and was wondering how I can grab all the info from a certain part of an array. I have for example the following array:

$date = array(
	"1" => array(1 => "hi", 2 => "hi2"),
	"2" => array(1 => "hi3"),
	"3" => array(1 => "hi4", 2 => "hi5", 3 => "hi6")
);

I got it output easily via:

list($num, $text) = $date[1];
 echo "$text\n";

But I want to loop it somehow to grab all of the values in the array. How do I do that?
Thanks

[LordShryku]

Just use a nested loop.

foreach($date as $key => $array) {
   foreach($array as $subkey => $value) {
      echo $value."\n";
   }
}

[cmdr_bond]

Okay, this is a very stupid question, but do I just paste that code into my php page? I did and i got two error warnings:
Warning: Invalid argument supplied for foreach()
Warning: Invalid argument supplied for foreach()

How do I specify that I want to only output all the events from the 3rd date in the bigger array?

Thanks