更好的迭代显示对象属性PHP - Better iteration to display Object properties PHP

我正在寻找一种更好的方法来遍历对象并显示其内容
窗体控制器：

公共函数run（）{$tabteachers="；if（！empty（$_SESSION['apply']）&&！空（$_SESSION["应用程序"]）{$tabtears=DB:：getInstance（）->select_tacher_id（$_SESSION['login']）；}require_one（VIEW_PATH.'formdeux.php'）；}

Db.class函数（）：

公共函数select_tacher_id（$login）{$query='从教师、实习、学生中选择*WHERE teachers.email_tacher=interships.email_reresponsible_internship-AND-students.registry_number_student=interships.registry_student_enterships.registry_student_entership='$this->_db->报价（$login）；$result=$this->_db->query（$query）；if（$result->rowcount（）！=0）{while（$row=$result->fetch（））{$teacher[]=新教师（$row->email_tacher，$row->firstname_tacher、$row->lastname_tacheer，$row->responsible_internship_tacher为NULL）；}return$tear；}}

表单视图：

    <table>
        <thead>
            <tr>
                <th width="20%" class="decoration">contact</th>
            </tr>
        </thead>
            <tbody>
            <?php foreach ($tabteachers as $teacher) { ?>
                <tr>
                    <td>Lastname: <td>
                    <input type="text" name="lastnamepro" value="<?php echo $teacher->lastname_teacher() ?>" size="100px">
                </tr>
                <tr>
                    <td>Firstname: <td>
                    <input type="text" name="firstnamepro" value="<?php echo $teacher->firstname_teacher() ?>" size="100px">
                </tr>
                <tr>
                    <td>Email address: <td>
                    <input type="text" name="emailpro" value="<?php echo $teacher->email_teacher() ?>" size="100px">
                </tr>
                <tr>
                    <td>Service: <td>
                    <input type="text" name="servicepro" value="null" size="100px">
                </tr>
                <tr>
                    <td>mobile number: <td>
                    <input type="text" name="phonenumberpro" value="aucun numero" size="100px">
                </tr>
            <?php } ?>
            </tbody>
    </table><br>

Db连接：

私有静态$instance＝null；私有$db；私有函数__construct（）{尝试{$this->_db=新PDO（'mysql:host=localhost；dbname=ProjectWeb；charset=utf8'，'root'，''）；$this->_db->setAttribute（PDO:：ATTR_ERRMODE，PDO:：ERRMODE_EXCEPTION）；$this->_db->setAttribute（PDO:：ATTR_DEFAULT_FETCH_MODE，PDO:：FETCH_OBJ）；}catch（PDOException$e）{die（'连接错误：'.$e->getMessage（））；}}//Pattern Singleton公共静态函数getInstance（）{if（is_null（self:：$instance））{self:：$instance=new Db（）；}return self:：$instance；}

提前感谢您的帮助！

我看到你已经将默认的获取模式设置为fetch_OBJ，在这种特殊的情况下，尽管我认为你可以使用PDO的fetchAll方法将整个结果集作为一个数组，然后迭代它，

 public function select_teacher_id($login){
   $query = 'SELECT * FROM teachers,internships,students WHERE
   teachers.email_teacher = internships.email_responsible_internship
  AND students.registry_number_student = internships.registry_student_internship
  AND internships.registry_student_internship = '. $this->_db->quote ( $login );

   $result = $this->_db->query ( $query );
       if ($result->rowcount () != 0) {
         //fetch the entire result set as a multi-dimensional assoc array
         $teachers_result = $result->fetchAll(PDO::FETCH_ASSOC); 
         return $teachers_result;
       }
 }

//查看

<table>
    <thead>
        <tr>
            <th width="20%" class="decoration">contact</th>
        </tr>
    </thead>
        <tbody>
        <?php foreach ($tabteachers as $teacher) { ?>
            <tr>
                <td>Lastname: <td>
                <input type="text" name="lastnamepro" value="<?php echo $teacher['lastname_teacher'] ?>" size="100px">
            </tr>
            <tr>
                <td>Firstname: <td>
                <input type="text" name="firstnamepro" value="<?php echo $teacher['firstname_teacher'] ?>" size="100px">
            </tr>
            <tr>
                <td>Email address: <td>
                <input type="text" name="emailpro" value="<?php echo $teacher['email_teacher'] ?>" size="100px">
            </tr>
            <tr>
                <td>Service: <td>
                <input type="text" name="servicepro" value="null" size="100px">
            </tr>
            <tr>
                <td>mobile number: <td>
                <input type="text" name="phonenumberpro" value="aucun numero" size="100px">
            </tr>
        <?php } ?>
        </tbody>
</table><br>