Simon Willison’s Weblog

A brief unofficial history about register_globals in PHP. It’s been more than five years since register_globals was disabled by default in PHP 4.2.0.

Posted 30th April 2007 at 8:20 am

Recent articles

GPT-5: Key characteristics, pricing and model card - 7th August 2025
OpenAI's new open weight (Apache 2) models are really good - 5th August 2025
ChatGPT agent's user-agent - 4th August 2025

history 41 philip-olson 1 php 181 registerglobals 1

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe