当内部联接值可能为null时如何填充表？

Question

我正在填充一个正在从其他2个表中获取ID来显示其信息的表，例如，交货带有汉堡包和盒子，但是用户可以不带盒子地注册交货，仅向汉堡包注册。当我将INNER JOIN SELECT从DB中获取数据时，它将返回0结果，因为没有框，并且我试图比较不存在的ID。然后，它会化成桌子。

SELECT
  entrega_telemovel.*,
  telemovel.id_telemovel,
  telemovel.nroserie,
  nro_telemovel.numero_telemovel,
  nro_telemovel.id_nrotelemovel,
  funcionarios.id_funcionario,
  funcionarios.nome
FROM entrega_telemovel
INNER JOIN telemovel
  ON entrega_telemovel.telemovel = telemovel.id_telemovel
INNER JOIN nro_telemovel
  ON nro_telemovel.id_nrotelemovel = entrega_telemovel.numero_telemovel
INNER JOIN funcionarios
  ON funcionarios.id_funcionario = entrega_telemovel.funcionario_entrega 
ORDER BY funcionarios.nome;

在此查询中，entrega_telemovel.telemovel=telemovel.id_telemovel的值像我上面给出的示例一样为空。因此，查询返回0个结果。我该如何解决？

Edit1：这是我的entrega_telemovel.telemovel页面。

PHP

0）{？>

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Answer 1

      <table id="devv" class="cell-border row-border compact nowrap" width="100%" cellspacing="0">
    <thead>
      <tr>
  <th style="border: 1px solid gray" class="text-center">Funcionario</th>
  <th style="border: 1px solid gray" class="text-center">Telemovel</th>
  <th style="border: 1px solid gray" class="text-center">Nº Telemovel</th>
  <th style="border: 1px solid gray" class="text-center">Data Entrega</th>
  <th style="border: 1px solid gray" class="text-center">DEVOLUÇÃO </th>
      </tr>
    </thead>
    <tbody>
    <?php
     while ($row = mysqli_fetch_assoc($busca)) {

     ?>

        <tr>
        <td class="text-center"><?php echo $row['nome'];?></td>
        <td class="text-center"><?php echo $row['telemovel'];?></td>
        <td class="text-center"><?php echo $row['numero_telemovel'];?></td>
        <td class="text-center"><?php echo $row['data_entrega'];?></td>
       <td class="text-center">
            <form action="delete_entregatelemovel.php" method="post">
              <input type="hidden" name="excluir_id" value="<?php echo $row['id_entrega'];?>">
              <button type="submit" name="excluir_btn" class="btn btn-dark"> DEVOLUÇÃO</button>
            </form>
        </td>
      </tr>
           <?php

           }
            ?>


    </tbody>
  </table>