How to Paginate lines in a foreach loop with PHP

Question

Using the following code to display a list of friends from my twitter profile. Id like to only load a certain number at a time, say 20, then provide pagination links at the

Answer 1

If you're loading the full dataset every time, you could be pretty direct about it and use a for loop instead of a foreach:

$NUM_PER_PAGE = 20;

$firstIndex = ($page-1) * $NUM_PER_PAGE;

$xml = simplexml_load_string($rawxml);
for($i=$firstIndex; $i<($firstIndex+$NUM_PER_PAGE); $i++)
{
        $profile = simplexml_load_file("https://twitter.com/users/".$xml->id[$i]);
        $friendscreenname = $profile->{"screen_name"};
        $profile_image_url = $profile->{"profile_image_url"};
        echo "$friendscreenname
";
}

You'll also need to limit $i to the array length, but hopefully you get the gist.