Matomo PHP Settings

The Problem #

I turned on Matomo and the dashboard had dozens of PHP function deprecation notices. Typical:

WARNING: /plugins/Events/Archiver.php(82): Deprecated - Creation of dynamic property Piwik\Plugins\Events\Archiver::$maximumRowsInSubDataTable is deprecated - Matomo 4.13.1 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: API, Action: get, Method: VisitsSummary.get, In CLI mode: false)

WARNING: /core/DataAccess/ArchiveWriter.php(102): Deprecated - Creation of dynamic property Piwik\DataAccess\ArchiveWriter::$idArchive is deprecated - Matomo 4.13.1 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: API, Action: get, Method: VisitsSummary.get, In CLI mode: false)

WARNING: /core/DataAccess/ArchiveWriter.php(103): Deprecated - Creation of dynamic property Piwik\DataAccess\ArchiveWriter::$idSite is deprecated - Matomo 4.13.1 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: API, Action: get, Method: VisitsSummary.get, In CLI mode: false)

WARNING: /core/DataAccess/ArchiveWriter.php(104): Deprecated - Creation of dynamic property Piwik\DataAccess\ArchiveWriter::$segment is deprecated - Matomo 4.13.1 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: API, Action: get, Method: VisitsSummary.get, In CLI mode: false)

This is caused by Matomo being written for a PHP version that I am not running. Matomo is usually up to date with one minor version back. So check what your server is running (not your terminal/CLI, your Apache2 apache.conf, or httpd.conf -- those often are running different PHP versions!).

The Apache settings in Ubuntu look like this #

It is split into several files forming the configuration hierarchy outlined
below, all located in the /etc/apache2/ directory:

   /etc/apache2/
   |-- apache2.conf
   |       `--  ports.conf
   |-- mods-enabled
   |       |-- *.load
   |       `-- *.conf
   |-- conf-enabled
   |       `-- *.conf
   `-- sites-enabled
           `-- *.conf

To be continued #

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