PHP is the programming language that runs WordPress.
The PHP version used by your website has a direct impact on compatibility, performance and security.

Choosing the correct PHP version is essential for a stable WordPress website.

Why PHP Version Matters for WordPress #

The PHP version affects:

• Whether WordPress loads correctly
• Plugin and theme compatibility
• Website performance
• Security and stability

Using an unsupported or incompatible PHP version can break your site.

Supported PHP Versions at ProRedLine #

At ProRedLine:

• Multiple supported PHP versions are available
• End-of-life PHP versions are not offered
• PHP versions are managed via MultiPHP Manager

Only secure and maintained versions can be selected.

WordPress and PHP Compatibility #

WordPress core:

• Supports a defined range of PHP versions
• Is regularly updated to support newer PHP releases

Plugins and themes:

• May lag behind in compatibility
• Are the most common source of PHP-related issues

A plugin can break even if WordPress itself supports the PHP version.

Choosing the Right PHP Version #

You should choose a PHP version based on:

• Official WordPress requirements
• Plugin and theme compatibility
• Existing site stability

If unsure, use the default recommended PHP version.

Changing PHP Versions Safely #

Before changing PHP versions:

• Ensure backups exist
• Avoid doing this on a live production site during peak usage
• Consider testing via staging first

After changing:

• Test frontend pages
• Test admin dashboard
• Check for error messages

Common PHP Compatibility Issues #

Issues may include:

• White screens
• Fatal errors
• Broken plugins
• Admin pages not loading

These are usually caused by outdated plugins or themes.

Responsibility Notice #

You are responsible for:

• Selecting a compatible PHP version
• Testing after changes
• Fixing application-level errors

ProRedLine does not debug WordPress or plugin code.