It worked. It bypassed the broken PHP entirely because it was a static server-side include, reading the flat file structure directly from the disk.
SHTML is not a programming language like PHP or ASP. It is a static HTML file that contains special directives (SSI) executed by the web server before the page is sent to the browser. SSI allows webmasters to inject dynamic content—like a current date, a hit counter, or a common footer—into an otherwise static page without running a full database backend. inurl view index shtml
The search string inurl:view index.shtml is a reminder of a fundamental truth of the internet: What was once a convenient technology for including headers and footers has become a fingerprint of outdated, often insecure, systems. It worked