Is it possible to write a PDO driver in pure PHP?

• postgres

  3 88 7.6 PHP

  Async Postgres client for PHP based on Amp. (by amphp)

  

As for writing SQL database adapters with an efficient API, look at https://github.com/amphp/postgres/tree/f52cc35ef02ee4ad709083e0432c2288d4df7de0 - it doesn't implement the PDO API, but it shows that performance can be achieved in userland, when the architectural paradigm is the right one for the job.

• pdo-via-oci8

  1 87 5.2 PHP

  PHP PDO_OCI functions via OCI8 extension

Yes. See https://github.com/yajra/pdo-via-oci8 for example.

• WorkOS

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  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• mysql

  2 346 7.5 PHP

  An async MySQL client for PHP, optimizing database interactions with efficient non-blocking capabilities. Perfect for responsive, high-performance applications. (by amphp)

  

Here's an example of a PHP-only driver that talks to MySQL: https://github.com/amphp/mysql/tree/master/src

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