How to display PHP code source files in the browser without letting it run?

Title: How to display PHP code source files in the browser without letting it run?

PHP is a widely used server-side scripting language often used to develop dynamic web pages. However, in some cases, we may want to display the PHP code source file in the browser without letting it run. This article will describe how to achieve this goal, as well as provide specific code examples.

1. Why do you need to display the PHP code source file but not let it run?

1. Learning purpose: Sometimes we want to learn other people's PHP code, but we just want to see the structure and logic of the code without running it.
2. Security considerations: In some cases, we do not want users to be able to directly access the contents of PHP source files to avoid leaking sensitive information.

2. How to display the PHP code source file in the browser without letting it run?

1. Use code highlighting plug-ins: We can use some code highlighting plug-ins to display PHP code, but not let it run. A commonly used plugin is "highlight.js".
2. Disable PHP code execution: Add a line of code at the beginning of the PHP file to convert the PHP code into plain text output without allowing it to be executed.

The specific code examples are as follows:

<?php
header('Content-Type: text/plain'); // 设置内容类型为纯文本
readfile('your_php_file.php'); // 读取PHP文件内容并输出到浏览器
?>

The above code will read the specified PHP source file and output it to the browser in the form of plain text, so as to display the code without The purpose of letting it run.

Summary: Through the above method, we can easily display the PHP code source file in the browser without letting it run, which not only meets the needs of learning and reference, but also ensures the security of the code. Hope this article helps you!

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