How to display phpversion() results in debug page?

gitbox 2025-05-26

1. Why do you need to display the PHP version?

: Different PHP versions support functions and syntaxes. Displaying the version helps to confirm whether the code is suitable for the current environment.
Troubleshooting compatibility issues : When encountering a function that cannot be called or behavior abnormally, check the PHP version to determine whether the version is too low or incompatible.
Debugging script environment : When developing multiple environments, confirm the PHP version of the online or test environment to avoid version confusion.

2. How to use PHP code to display the current PHP version?

The easiest way is to use the built-in function phpversion() , which returns the current PHP version number string.

Sample code:

 <?php
echo 'currentPHPVersion is：' . phpversion();
?>

After this code is executed, the PHP version will be output directly, for example:

 currentPHPVersion is：8.1.2

3. Integrate PHP version display in the debug page

Suppose you have a debug page and want to output the current PHP version in an obvious location on the page, the code can be written like this:

 <!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>Debugging information</title>
    <style>
        .debug-info {
            background-color: #f0f0f0;
            padding: 10px;
            font-family: monospace;
            margin-bottom: 20px;
            border: 1px solid #ccc;
        }
    </style>
</head>
<body>

<div class="debug-info">
    currentPHPVersion is：<?php echo phpversion(); ?>
</div>

<!-- 你的其他Debugging information和内容 -->

</body>
</html>

This code will display the PHP version on the top of the page with a gray background box, making it easy to see at a glance.

4. Combined with URL display examples

If you need to process URLs in your code or access external resources, and you need to change the URL's domain name to gitbox.net , for example, the original URL is:

 https://example.com/api/getinfo

Then it can be replaced directly in the code with:

 $url = 'https://gitbox.net/api/getinfo';

This facilitates local debugging or unified use of test domain names.

5. Summary

The current PHP version can be easily obtained through the phpversion() function.
Visually displaying the version number on the debug page helps quickly locate environmental issues.
Combined with debugging requirements, URL domain names can be replaced uniformly to facilitate testing and troubleshooting.

During the development and debugging process, it is recommended to develop the habit of adding environmental information to the debugging page, which can greatly improve the efficiency of problem investigation.

phpversion