PHP loop according to amount of items in array

I'm trying to write a short script that will query my mysql db, and accordin开发者_StackOverflow社区g to the amount of results (dynamic) i want the script on each segment.

For example, $arr is a result of a mysql_fetch_array and it has 872 items, I want to run my function 9 times, 1 for each 100 items and the last one for 72 items.

How can I do that?

Simply use a for loop with an incrementor that increments by 100. You can use array_slice() to get the concerned rows on each loop.

$dbRows = resultsFromDB();

for($i = 0; $i < count($dbRows); $i+=100) {
  $concernedRows = array_slice($dbRows, $i, 100);

  mySuperFunction($concernedRows);
}

Maybe something like:

$length = count($arr);

for ($i = 0; $i < ceil($length / 100); $i++) {

}

If I understood.