Ok, never used PHP before in my life, but have to do so for my uni course.

I have been trying to use the foreach command but with a 2D array rather than a 1D array, and it doesn't seem to like it. Is there any way around this?

Not sure exactly what you want to do, but there's an example here of an iteration over a 2D array.

Edd

I am trying to produce a discussion board (uni assignment). My plan for each page was to create an array along the following lines:

[Post Title],[Username],[PostTime],[Message]
[Post Title2],[Username2], [PostTime2],[Message2]
etc…

Then use the Foreach to call a function with each entry in the row as a parameter, which would then create the 'box' that each post would reside in.

All the examples I can see on that page only go through what would call a 1D array (ie just a single column) rather than an array with multiple columns.

The example I was refferring to was the following:


Could you not do something along the lines of:


I'm by no means an expert, though

Edd

The problem seems to be that it wants to treat it as a kind of list, running the loop for every single entry in the array, rather than letting me do it on a row by row basis.

When you say you have an array:

[Post Title],[Username],[PostTime],[Message]
[Post Title2],[Username2], [PostTime2],[Message2]

Do you mean you have something equivalent to:

No, in effect I have the following:

$a = array();
$a[0][0] = "PostTitle";
$a[0][1] = "Username";
$a[0][2] = "PostTime";
$a[1][0] = "PostTitle2";
$a[1][1] = "Username2";
$a[1][2] = "PostTime2";
$a[2][0] = "PostTitle3";
$a[2][1] = "Username3";
$a[2][2] = "PostTime3";

etc

EDIT:

I think what I'm going to have to do is create a whole group of arrays as mentioned above (one for each entry) and then maybe a final array that will contain the variable name for each of the other arrays, and then use a foreach loop.

The foreach breaks only the first level of the array away.

So :



If you want to automatically walk the second dimension as well:



Would output :


You don't need to use the "$index => $value" syntax in a foreach loop, but I find it useful, as you have access to the outermost array index each time. In this case, the "$outIndex" contains the 0 - 2 of the outermost array and $index the index of the inner array ('title', 'username', 'time'). This can be very useful at times - E.g. copying items from an array to properties of a class:

Dave, that's awesome, the first example is perfect for what I need. Got it working with a function in there and all is delicious.

Now, where's the next part for me to fall flat on my face over?

Edit: Problem solved.

Glad I could be of help.

This is the first time I've ventured into the Open Source forum for aaaages. I completely missed this thread.

I still think we need a general help forum for stuff like this.