split loop

<?php
// example code

$records = array(['satu' => 'satu', 'dua' => 'satu'],
['satu' => 'dua', 'dua' => 'dua'],
['satu' => 'tiga', 'dua' => 'tiga'],
['satu' => 'empat', 'dua' => 'empat'],
['satu' => 'lima', 'dua' => 'lima'],
['satu' => 'enam', 'dua' => 'enam'],
['satu' => 'tujuh', 'dua' => 'tujuh'],
['satu' => 'delapan', 'dua' => 'delapan'],
['satu' => 'sembilan', 'dua' => 'sembilan'],
['satu' => 'sepuluh', 'dua' => 'sepuluh'],
['satu' => 'sebelas', 'dua' => 'sebelas'],
['satu' => 'duabelas', 'dua' => 'duabelas'],
['satu' => 'tigabelas', 'dua' => 'tigabelas'],
['satu' => 'empatbelas', 'dua' => 'empatbelas'],
);

$total = count($records);

$percall = 15;

    if($total >= $percall) {
      $step = (int)floor($total/$percall);
      
      (int)$rest = $total%$percall;
      if($rest > 0) {
          $step = $step + 1;
      }
      
      $stepArray = array();
      $start = 0;
      $end = $percall;
      
      for ($i = 1; $i <= $step; $i++) {
        
        
        
        if($i == 1) {
                $start = $i;
                $end = $percall;
            } else {
                $start = ($start + ($percall));
                
                if($i == $step) {
                    $end = $total-1;
                } else {
                    $end = ($end + ($percall));
                }
                
            }

        $stepArray[] = array(
            'start' => $start,
            'end' => $end
        );
      }
    } else {
      $stepArray[] = array(
            'start' => 1,
            'end' => $total-1
        );
    }
    
    foreach($stepArray as $key => $val) {
        var_dump($val);
    }