Question

I print img html elements by a foreach cycle.

Images are stored in db so if they are 40 foreach will print 40 img

Now i need that if they are 40 in db and i need to print 100 img elements, to repeat the cycle until they are 100, is it possible to do that?

EDIT:

to be clear, i retrieve 40 img from db, i need to print “100 OF THEM” (repeat them if they are less than 100) … hope is clear 😛

Answer 1

You can use Iterators:

$images = new LimitIterator(
    new InfiniteIterator(
        new ArrayIterator($imgArray)
    ), 
    0, 100
);

foreach ($images as $image) {
    // print images
}

The ArrayIterator makes your $imgArray iterateable by other Iterators. The InfiniteIterator will make the wrapped ArrayIterator start over at the beginning when it has reached the end of $imgArray. Finally, the LimitIterator will limit the iteration to 100 items.

So, when you iterate over $images, foreach will go over the elements in the image array repeating them over and over until 100 elements have been printed, e.g. this will output images 1-40, then again 1-40 and finally 1-20 because 40+40+20=100.

Demo: http://codepad.org/YeDgpsVc