如何在将所有可能的页面的分页总和保持相等的同时将值平均分为两部分？

Question

I am trying to fetch results based on two types of results. First top of search (TOS) and then non top of search (NTOS) so before this by using a single query pagination was easy but since now I am fetching records from two different queries and then showing them together makes it hard. What I want to do is give priority to TOS results over NTOS results and keep total results per page to 39 results. So I would like to make an array dividing the results equally into all possible pages.

I tried to do this but when things become a bit hard I can't get my head around this. So I am looking for answers.

$tos = 23;
$ntos = 26;

$loop = true;
$page = 1;
$numPerPage = 39;
$pageData = array();
while ($loop) {
  if ($page == 1) {
    $caltos = (($numPerPage - $tos) > $numPerPage ? ($numPerPage - $tos) : $tos);
    $calntos = (($numPerPage - $caltos) > $ntos ? $ntos : ($numPerPage - $caltos));
  } else {
      foreach ($pageData as $eachPage) {
          $caltos = (($numPerPage - $eachPage['tos']) > ($page * $numPerPage) ? ($numPerPage - $tos) : $tos);
          $calntos = (($numPerPage - $caltos) > $ntos ? $ntos : ($numPerPage - $caltos));      
      }
    $loop = false; 
  }
  $pageData[$page] = array('tos' => $caltos, 'ntos' => $calntos );
  $page++;
}

print_r($pageData);

I want to expect the following result by giving it different inputs as:

1) TOS: 23 & NTOS: 26
Expected Result: 
[  
  [1] => ['tos' => 23,'tosOffset' => 0, 'ntos' => 16, 'ntosOffset' => 0], 
  [2] => ['ntos' => 10, 'ntosOffset' => 16] 
]

2) TOS: 49 & NTOS: 56
Expected Result:
[  
  [1] => ['tos' => 39, 'tosOffset' => 0], 
  [2] => ['tos' => 10, 'tosOffset' => 39, 'ntos' => 29, 'ntosOffset' => 0],
  [3] => ['ntos' => 27, 'ntosOffset' => 29]
]

3) TOS: 0 & NTOS: 73
Expected Result:
[  
  [1] => ['ntos' => 39, 'ntosOffset' => 0], 
  [2] => ['ntos' => 34, 'ntosOffset' => 39]
]

Answer 1

It's a work for an usual loop

while ($tos or $ntos) {
    $sum = min($tos, $numPerPage);
    if($sum) {
        $pageData[$page]['tos'] = $sum;
    }
    $tos -= $sum;
    $rest = min($ntos, $numPerPage- $sum);
    if($rest) {
        $pageData[$page]['ntos'] = $rest;
    }
    $ntos -= $rest;
    $page++;
}