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বাংলা
हिन्दी

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PHP version incompatible ​

Symptoms ​

  • The application shows errors such as "call to undefined function" or "requires PHP version".
  • The site stopped working after the PHP version was changed.
  • The installer or update tool refuses to run.

Common causes ​

  • The selected PHP version is too old or too new for the application.
  • A plugin or library in the application needs a different PHP version.
  • The change was made for one domain but the application is installed in another folder.

Safe initial checks ​

  1. Find the required PHP version in the application's documentation or requirements page.
  2. Check the current version in the hosting panel. See PHP and applications.
  3. Check the error log for the exact message. See Resource usage and logs.

Step-by-step solutions ​

  1. Version too old. Select a PHP version that the application supports, and test the site.
  2. Version too new. Select a supported older version, or update the application and its plugins first.
  3. Plugin needs a different version. Update or replace the plugin that causes the conflict.
  4. Wrong folder. Set the PHP version for the domain or folder that holds the application.

Test each change on a copy of the site if possible.

How to confirm the issue is fixed ​

  • The application loads, and the admin area works.
  • The error log shows no version-related messages.

When to contact support ​

Contact support if the required version is not offered on your plan, or if the change does not take effect.

Information to include in a support ticket ​

  • The application name and version, and the PHP version you need.
  • The exact error text from the log.

Last reviewed ​

2026-10-27