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

Video: Building a tool to copy-paste share terminal sessions using Claude Code for web - 23rd October 2025
Dane Stuckey (OpenAI CISO) on prompt injection risks for ChatGPT Atlas - 22nd October 2025
Living dangerously with Claude - 22nd October 2025

history 41 philip-olson 1 php 181 registerglobals 1

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