PHP is a scripting language that powers many websites — especially those built with WordPress, Joomla, Drupal, and custom applications. Choosing the right PHP version is essential for performance, security, compatibility, and speed.
This guide explains what PHP is, why it matters, how to check your current version, and how to update it.
What Is PHP?
PHP stands for Hypertext Preprocessor. It’s a server-side programming language used to generate dynamic web pages. When a visitor requests a page, the server processes the PHP code and sends the resulting HTML to the browser.
Many content management systems (CMS) and web applications rely on PHP to function correctly.
Why PHP Version Matters
🔒 Security
Older PHP versions no longer receive security updates. Running an outdated version can expose your site to vulnerabilities.
⚡ Performance
Newer PHP versions are faster and more efficient. Updating your PHP can significantly improve site speed.
✔ Compatibility
Latest plugins, themes, and software updates often require up-to-date PHP versions.
Supported PHP Versions
Web hosting providers periodically update their servers to support the latest stable PHP releases. Generally:
Current stable versions offer the best performance
Older versions may be deprecated or unsupported
Running a supported version keeps your website secure and fast.
How to Check Your Current PHP Version
There are multiple ways to check your site’s PHP version:
✔ From Your Hosting Control Panel
Log in to your hosting control panel
Look for PHP Version Manager or Select PHP Version
Your current PHP version will be displayed
✔ Using a phpinfo File
Create a file called
phpinfo.phpAdd this code:
<?php phpinfo(); ?>
Upload it to your website root
Visit:
https://yourdomain.com/phpinfo.php
This page will show your current PHP version and configuration.
How to Change Your PHP Version
Updating your PHP version is simple and usually done from the hosting control panel.
Step-by-Step
Log in to your hosting control panel
Go to PHP Version Manager or PHP Selector
Choose the desired PHP version
Save changes
After updating, your website will use the new PHP version.
Best Practices Before Updating
📌 Backup Your Site
Before making changes, create a full backup of your website and database.
📌 Check Plugin & Theme Compatibility
Some older plugins or themes may not support the latest PHP versions.
Check for updates before switching.
📌 Test on a Staging Site
If possible, test the PHP update on a staging or development site first.
What Happens After Updating
✔ Your site may load faster
✔ You get better security updates
✔ Newer code features are supported
✔ Some incompatible plugins may break (rare)
If something breaks, you can always revert back to an earlier version.
Common Issues & Fixes
⚠ White Screen or Errors After Update
If your site shows errors after updating PHP:
✔ Revert to the previous version
✔ Update plugins and themes
✔ Check error logs for specific issues
✔ Contact support if needed
⚠ Plugin Compatibility Problems
Some plugins may be outdated.
✔ Update or replace incompatible plugins
✔ Use alternatives if necessary
Recommended PHP Versions
For most websites today:
✔ PHP 8.0 or newer — Recommended for performance and security
✔ Avoid unsupported versions — They lack updates and may cause vulnerabilities
Always choose a version supported by your hosting provider.
More Tips
✔ Keep your PHP version updated regularly
✔ Monitor plugin updates for compatibility
✔ Enable OPCache for better performance
✔ Review server logs for warnings
Proper PHP management keeps your site secure, fast, and up to date.
For Support
For any questions or technical assistance, contact our 24/7 support through Live Chat, support tickets, or our official social media pages.
Frequently Asked Questions
Q1. What is PHP?
PHP is a server-side scripting language used to build dynamic websites and applications.
Q2. Why should I update my PHP version?
Updating PHP improves security, speed, and compatibility with modern plugins and themes.
Q3. Can updating PHP break my site?
It can if plugins or themes are incompatible. Always back up before updating and test on staging if possible.
Q4. How do I check my current PHP version?
You can check it from your hosting control panel or by using a phpinfo.php file.
Q5. Which PHP version should I use?
Use a recent stable version (such as PHP 8.0 or later) that’s supported by your hosting provider.
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Written by
FimuroHost Team
Technical Writer