limit and offset foreach loops

Question

Say i want to loop through XML nodes but i want to ignore the first 10 and then limit the number i grab to 10.

$limit=10; //define results limit
$o=20; //define offset
$i=0; //start line counter

foreach($xml->id AS $key => $value){
    $i++;
    if($i > $o){
    //if line number is less than offset, do nothing.
    }else{ 
    if($i == "$limit"){break;} //if line is over limit, break out of loop
    //do stuff here
    }
}

So in this example, id want to start on result 20, and only show 10 results, then break out of the loop. Its not working though. Any thoughts?

Answer 1

There are multiple bugs in there. It should be

foreach (...
    if ($i++ < $o) continue;
    if ($i > $o + $limit) break;
    // do your stuff here
}

Answer 2

The answer from soulmerge will go through the loop one too many times. It should be:

foreach (...
    if ($i++ < $o) continue;
    if ($i >= $o + $limit) break;
    // do your stuff here
}