Re: programming question

> Is there a way to associate an ID > number with two separate arrays? Where can I store this info? I haven't > started the project with oop in mind, but maybe that would be the way to go > with this? $prof[1] = array(1,2,3,4,5); $prof[2] = array(6,7,8,9,0); echo "Professor $id's array looks like this:<br>\n"; while(list(,$val)=each($prof[$id])) { echo "$val,"; } The above creates two simple arrays and assigns then to $prof[1] and $prof[2]. So, what you essentially have is a two-dimensional array that looks like this: 0 1 2 3 4 +----------- 1 | 1 2 3 4 5 | 2 | 6 7 8 9 0 To dereference this array, you can simple loop through each of $prof[1] and $prof[2] as I showed above, or you can get directly to an array element using something like: $prof[1][3] which could be '4' or $prof[2][4] which would be '0' You can also name your rows and columns directly. ie. $prof['Smith'] = array('Morning'=>'abc','Afternoon'=>'def'); $prof['Jones'] = array('Morning'=>'ghi','Afternoon'=>'jkl'); This would create a 2-dimensional array that looks like this: Morning Afternoon Smith abc def Jones ghi jkl And you can of course access it like this: $prof['Smith']['Afternoon'] which would be 'def' There you go, a quick lesson in multi-dimensional arrays. You should be able to massage this concept to do what you need. -Rasmus