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

Large Language Models can run tools in your terminal with LLM 0.26 - 27th May 2025
Highlights from the Claude 4 system prompt - 25th May 2025
Live blog: Claude 4 launch at Code with Claude - 22nd May 2025

php 127 history 40 registerglobals 1 philip-olson 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