How to display the source code of PHP code in the browser without being interpreted and executed?

How to display the source code of PHP code in the browser without being interpreted and executed?

PHP is a server-side scripting language commonly used to develop dynamic web pages. When a PHP file is requested on the server, the server interprets and executes the PHP code in it and sends the final HTML content to the browser for display. However, sometimes we want to display the source code of the PHP file directly in the browser instead of being executed. This article will introduce how to display the source code of PHP code in the browser without being interpreted and executed.

In PHP, you can use the special tags <pre class="brush:php;toolbar:false"></pre> and the htmlspecialchars() function to display PHP code in the browser in plain text. Here is a simple example:

<?php
header('Content-Type: text/plain'); // 设置内容类型为纯文本

$phpCode = '<?php echo "Hello, world!"; ?>'; // 要显示的PHP代码

echo '<pre class="brush:php;toolbar:false">'; // 使用<pre class="brush:php;toolbar:false">标签使显示更美观
echo htmlspecialchars($phpCode); // 将PHP代码转义后输出
echo '

'; ?>

In this example, first declare the response content as plain text by setting header('Content-Type: text/plain'). Then define a PHP code string $phpCode to be displayed, and use the <pre class="brush:php;toolbar:false"></pre> tag and the htmlspecialchars() function to display it in plain text in the browser.

When accessing this PHP file, the browser will display the source code of the PHP code without executing the code within it. This makes it easy to view and share the code content of PHP files without worrying about the code being executed.

To summarize, by using the <pre class="brush:php;toolbar:false"></pre> tag and the htmlspecialchars() function, we can display the source code of the PHP code in the browser without being interpreted and executed . This approach is useful for debugging, learning, and demonstrating code.

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