codeigniter 4 在 include, include_once, require, require_once 之后返回 1

Question

当我使用上面提到的（包括，include_once，要求，require_once）方法时，我在我使用它的每个内容的末尾都写了 1 .

看看：

PHP Code:
<!--Footer Section Starts Here-->
    <?= require_once("elements/footer.php"); ?>
<!--Footer Section Ends Here-->

<!--Bottom CSS and JS Starts Here-->
    <?= include_once("elements/bottom_css_and_js.php"); ?>
<!--Bottom CSS and JS Ends Here-->


Html Output
<div>
    <div>
        <p class="copyright">Copyright &copy;<script>document.write(new Date().getFullYear());</script> All rights reserved.</p>
    </div>
    <div>
        <p class="copyright">This template is made with <i class="ion-ios-heart text-red" aria-hidden="true"></i> by <a href="http://localhost:8080/codeigniter4">Localhost</a></p>
    </div>
</div>1

<!--Bottom CSS and JS Starts Here-->
    <script src="http://localhost:8080/codeigniter4/public/assets/js/jquery.min.js"></script>
    <script src="http://localhost:8080/codeigniter4/public/assets/js/popper.js"></script>
    <script src="http://localhost:8080/codeigniter4/public/assets/bootstrap-footer-19/js/bootstrap.min.js"></script>
    <script src="http://localhost:8080/codeigniter4/public/assets/js/main.js"></script>
  </body>
</html>1    
<!--Bottom CSS and JS Ends Here-->

Answer 1

这是为了扩展@sergiy T 的评论（答案）和 OP 的评论，“不，它不起作用......”

当前密码为

<!--Footer Section Starts Here-->
    <?= require_once("elements/footer.php"); ?>
<!--Footer Section Ends Here-->

<!--Bottom CSS and JS Starts Here-->
    <?= include_once("elements/bottom_css_and_js.php"); ?>
<!--Bottom CSS and JS Ends Here-->

由于使用的短代码形式，您在哪里回显对 require_once 和 include_once 等的调用结果。所以你会看到代码被“包含”，函数调用的结果也是 1.

因此您需要删除回显，因为执行 require 或 include 将内联代码设为 executed/displayed。

所以你需要把它改成...

 <?php require_once("elements/footer.php"); ?>   <?php include_once("elements/bottom_css_and_js.php"); ?> 

一如既往，建议阅读 php.net
中这些函数的作用

codeigniter 4 在 include, include_once, require, require_once 之后返回 1

codeigniter 4 is returning 1 after include, include_once, require, require_once

html

php

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