Simon Willison’s Weblog

PHP, XML, and Character Encodings: a tale of sadness, rage, and (data-)loss (via) Fixing some very funky behaviour in PHP’s XML parser.

Posted 26th June 2004 at 11:24 pm

Recent articles

My Lethal Trifecta talk at the Bay Area AI Security Meetup - 9th August 2025
The surprise deprecation of GPT-4o for ChatGPT consumers - 8th August 2025
GPT-5: Key characteristics, pricing and model card - 7th August 2025

php 181 xml 103

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