reading a 3d array inside an class, question

[stuartc1]

Hey All -

Im passing an array with 7 elements with 2 sub elements in to a function inside a class. I have $array[0][0] - $array[6][1].

When I use foreach() inside the function (to loop the array) - I get this error:
Warning: Invalid argument supplied for foreach()

I echoed out the var in the function, and it is an array!!

here is the culprit:

function change_hours($hsa) { 
	$c=0;
	foreach($hsa as $hs) { // error on this line!!
		// get hours and codes
		if($c==0) { 
					$this->sat = $this->mh->fix_format($hs[0]);
					$sat1 = $this->mh->fix_format($hs[1]);
		}
		if($c==2) {
					$this->mon = $this->mh->fix_format($hs[0]);
					$mon1 = $this->mh->fix_format($hs[1]);
		}
		if($c==3) {
					$this->tue = $this->mh->fix_format($hs[0]);
					$tue1 = $this->mh->fix_format($hs[1]);
		}
		if($c==4) {
					$this->wed = $this->mh->fix_format($hs[0]);
					$wed1 = $this->mh->fix_format($hs[1]);
		}
		if($c==5) {
					$this->thu = $this->mh->fix_format($hs[0]);
					$thu1 = $this->mh->fix_format($hs[1]);
		}
		if($c==6) {
					$this->fri = $this->mh->fix_format($hs[0]);
					$fri1 = $this->mh->fix_format($hs[1]);
		}
		$c++;
	}
// rest of the function here
}

any ideas.

Cheers,
Stuart