Contact person: Upgrade PHP website code from php 5.4 to 8.3

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Location: Freamunde, Portugal

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"My site is still running on PHP 5.4 with an and old MySQL/MariaDB and we want to upgrade to PHP version 8.3 and to the latest mariaDB/MySQL version.

The codebase relies only on core PHP—no custom plugins or extensions—so the task centres on modernising legacy syntax, migrating to PHP 8.3, and moving the database to the latest stable MariaDB/MySQL release while preserving every existing feature.

We want to keep all the functionalities of the website after the upgrade." (client-provided description)