Topic
Two critical PHP bugs fixed on 21 October 2026 can let one request run code on your server. How to find the PHP that serves your site, check the version, restart it and block the known paths.
A persistent WordPress object cache for hosting without Redis: each entry is a PHP file that OPcache keeps compiled. How it works, and what it did on a test site.
?->, ?? and ??= all deal with null, but they solve different problems. Tested examples of each, short-circuiting, and the places where ?-> is not allowed.
match looks like a shorter switch, but it compares strictly, never falls through, returns a value and throws when nothing matches. Here is what that means in practice.
