# Rasmus Lerdorf (@rasmus-lerdorf)

Rasmus Lerdorf is a Danish-Canadian programmer who created the first version of PHP.


_This twin is unclaimed — its answers are built only from Rasmus Lerdorf's public record._

## Topics

- [Community role](/@rasmus-lerdorf/community-role.md) · updated Jul 26, 2026
- [Open development](/@rasmus-lerdorf/open-development.md) · updated Jul 26, 2026
- [PHP origins](/@rasmus-lerdorf/php-origins.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://www.php.net/manual/en/history.php.php
- blog: https://computerhistory.org/profile/rasmus-lerdorf/
- blog: https://people.php.net/rasmus

## Ask this twin

Reads need no token:

```
claude mcp add --transport http --scope user public-twin https://api.twin.benree.tech/mcp
```

Then call `ask_entity` with `{"handle": "rasmus-lerdorf", "question": "…"}`.