View difference between Paste ID: AUEBBhbd and qs4YcbeJ

 <?php
 $array = ['+', '-', '/', '%'];
 $totype = ['intval', 'floatval', 'strval', 'boolval',  /* 'arrayval'*/];
 $from = $to = 10;
 $min = 1;
 $max = 100;
 while ($i < $to) {
     $i++;
     $a = mt_rand($min, $max);
     $b = mt_rand($min, $max);
     $a = $totype[$i % count($totype)]($a);
     $b = $totype[$i % count($totype)]($b);
     foreach ($array as $index => $item) {
         $result = false;
         try {
             eval($str = '$result =' . '(' . $a . ')' . $item . '(' . $b . ')' . ';');
         } catch (Exception $e) {
             $Result[] = compact(['str', 'result', 'a', 'item', 'b', 'status' => $e->getMessage()]);
         }
         $Result[] = compact(['str', 'result', 'a', 'item', 'b', 'status' => true]);
     }
 }
 $tr[] = '<tr>';
 $tr[] = '<th>#</th>';
 $tr[] = '<th>a</th>';
 $tr[] = '<th>тип (a)</th>';
 $tr[] = '<th>операция</th>';
 $tr[] = '<th>b</th>';
 $tr[] = '<th>тип  (b)</th>';
 $tr[] = '<th>=</th>';
 $tr[] = '<th>тип (=)</th>';
 $tr[] = '<th>str</th>';
 $tr[] = '</tr>';
 foreach ($Result as $index => $item) {
     $tr[] = '<tr>';
     $tr[] = '<td>' . $index . '</td>';
     $tr[] = '<td>' . $item['a'] . '</td>';
     $tr[] = '<td>' . (gettype($item['a'])) . '</td>';
     $tr[] = '<td>' . $item['item'] . '</td>';
     $tr[] = '<td>' . $item['b'] . '</td>';
     $tr[] = '<td>' . (gettype($item['b'])) . '</td>';
     $tr[] = '<td>' . $item['result'] . '</td>';
     $tr[] = '<td>' . (gettype($item['result'])) . '</td>';
     $tr[] = '<td class="str">' . $item['str'] . '</td>';
     $tr[] = '</tr>';
 }
 echo '<table align="center" class="table">' . implode(PHP_EOL, $tr) . '</table>
  <style>.table{border-collapse: collapse;  min-width: 960px} .table.th, table.td{border:1px solid  black; padding: 2px;} table  tr:nth-child(5n) td{background-color: #0b70db;}</style>';
 
 
 
 echo '<table border=1>';
 for ($i=0; $i<=255; $i += 50)
 {
     echo '<tr>';
 
     for ($j=0; $j<=255; $j += 50)
     {
         for ($k=0; $k<=255; $k += 50)
         {
             echo '<td style="background-color:RGB('.$i.', '.$j.', '.$k.');"> rgb('.$i.', '.$j.', '.$k.')</td>';
         }
     }
 
     echo '</tr>';
 }
 echo'</table>';