On 20.02.2019 at 20:23, Yves Goergen wrote: > So this cannot be solved. I've changed my code from PDO to SQLite3 and > get this error message instead: > > $this->connection->loadExtension('json1'); // or json1.dll > > --> Not supported in multithreaded Web servers > > XAMPP does not support letting PHP's SQLite load extensions. For > whatever reason. Maybe they're not capable of getting it right, I don't > know. XAMPP has disappointed and (negatively) surprised me before. > > https://community.apachefriends.org/viewtopic.php?p=211647 > > So I need to find another solution. That sucks. This is not particularly an XAMPP issue, but rather a limitation of the SQLite3 extension[1]. Anyhow, the simplest solution would be to use PHP 7.3, where the JSON1 extension of SQLite3 is supposed to be available in the Windows builds by default[2]. If you need an older PHP version, you likely have to compile ext/sqlite3 yourself. [1] <https://github.com/php/php-src/blob/623911f993f39ebbe75abe2771fc89faf6b15b9b/ext/sqlite3/sqlite3.c#L354-L361>. [2] <https://github.com/php/php-src/blob/PHP-7.3/ext/sqlite3/config.w32#L6> -- Christoph M. Becker