gistfile1.php

<?php
$rows = 106;
function seek_row_count($rows, $target = 35){
    $result = $rows % $target;
    if($result == 0 || $result > 1) return $target;
    return seek_row_count($rows, --$target);
}
print seek_row_count($rows, 35);
?>

Using tail-call recursion to split a large collection into a set of slices without any widows at the end.