Question

我正在尝试自学PHP。我已经找了解如何使这项工作。

我有一个在线投资组合，当我收到它时，我会发布我的每周学校作业和成绩。

我目前看起来像这样：

<?php
$page_title = "MATH203 | Journey to my Oasis";
$grade = "A = 185/185";
$course_title = "Applications of Discrete Mathematics";
$course_description = "Math. A fun four letter word. A lot of people have issues with this subject. I like math. I am not proficient by any stretch of the imagination, but I like it. It is challenging. Having this course after programming, I believe, will allow me to think of it in the manner in which it is intended. The professor is also teaches computer science. This should be interesting.";
?>

<?php include("../includes/header.php");?>
<?php include("../includes/navigation.php");?>
<?php include("../includes/classannounce.php");?>

<div id="content">
    <div id="content_container">
        <div class="one_half">
            <h3>Discussion Board Posts</h3>
            <h4><ul>
                <li>
                    <a href="url" target="_blank">Week 1</a>
                    &nbsp; &nbsp; Grade - A
                </li>
                <li>
                    <a href="url" target="_blank">Week 2</a>
                    &nbsp; &nbsp; Not yet graded
                </li>
                <!--
                    <li>
                    <a href="url" target="_blank">Week 3</a>
                      &nbsp; &nbsp; Grade - A
                    </li>
                    <li>
                    <a href="url" target="_blank">Week 5</a>
                      &nbsp; &nbsp; Grade - B-
                    </li>
                -->
                <li>All links open a new window</li>
            </ul></h4>
        </div>
    </div><!--end content_container-->
</div><!--end content-->
'<?php include("../includes/footer.php");?>
</body>

我想要做的是有一个单独的PHP文件，我将其包含在标题PHP文件中，因此它随处可见，只是为了减少代码量。

目前我正在做的只是隐藏了我尚未达到的那几周的html。我使用原始页面作为模板，只是在我去的时候改变它。我正在尝试更多地结合PHP，以便我可以更容易地进行更改，以便尽可能多地学习。我想通过调用一个函数来填充所需的变量，我可以减少所需的代码和所需的时间。

这个单独的文件将具有如下函数：

<?php
function assignment()
{
    $skydoc = '';
    $week_no = '';
    $grade_letter = '';
    echo '<li><a href="', $skydoc, '" target="_blank">Week ', $week_no,
        '</a>&nbsp; &nbsp; Grade - ', $grade_letter, '</li>';
}
?>

我尝试调用函数并在其中包含变量，以便填充相应的部分。

assignment($skydoc = 'url', $week_no = '2', $grade_letter = '?')

我在同一个文件中尝试用于测试目的，但是当我在服务器上尝试时，我得到的是HTML

<li>
    <a href="" target="_blank">Week </a>
    &nbsp; &nbsp; Grade - 
</li>

提前谢谢你。如有任何疑问或需要澄清，请告知我们。

Answer 1

...接近

function assignment($skydoc = '', $week_no = '', $grade_letter = ''){
    echo '<li>
                <a href="'.$skydoc.'" target="_blank">Week '.$week_no.'</a>
                &nbsp; &nbsp; Grade - '.$grade_letter.'
              </li>';
}

assignment('url', '2', '?');

Answer 2

你的功能有点不正确。函数声明应该包含您传递给它的变量的占位符。

 function assignment($skydoc = 'url', $week_no = '2', $grade_letter = '?')
 {
            echo '<li>
                <a href="',$skydoc,'" target="_blank">Week ',$week_no,'</a>
                &nbsp; &nbsp; Grade - ',$grade_letter,'
              </li>';
 }

然后，当您想要调用该函数时，您只需调用以下内容

assignment('value', 1, 'A');

如果您按如下方式调用赋值，那么您将在变量中放置默认值。

assignment(); // url, 2, ?

尝试创建一个仅使用新变量实例的PHP函数

2 个答案: