What is PHP and why did it spark a global cyber-security scramble?

What the coverage shows

Both Reuters and BBC News frame the story around AI uncovering long-hidden flaws in PHP and the resulting cyber-security scramble. Reuters adds the only specific detail in the extracts, saying some government websites in Europe and elsewhere went offline after the vulnerabilities were uncovered, while the BBC keeps its framing more general and stresses that the response was rare and global.

Written by Crossfiled from the 1 headlines and extracts below, not from the articles themselves. It describes how the outlets framed this, not what happened. Open any headline for a summary of that article.