Throwing from __toString was a fatal error, which meant a value object that could not render itself had to return a placeholder string and hope somebody noticed. 7.4…
Immutability in 7.4 is a convention enforced by discipline: a private typed property, a constructor that sets it, and no setter. final matters more than it looks: without…
0.12 shipped in December with a baseline generator, and it is the feature that makes static analysis adoptable on a codebase that has never had any. The file…
The pattern does not require two machines or a load balancer — two upstreams and an nginx variable will do it, and the rollback becomes a config reload.…
7.4 arrived on 28 November with types on properties, and it introduces a state PHP has never had: a property that has been declared, has no default, and…
Setting a default only when a key is missing was $a[‘k’] = $a[‘k’] ?? $v;, which evaluates the subscript twice and reads as a statement about itself. The…
The character set MySQL calls utf8 stores at most three bytes per character, which excludes emoji and several CJK ranges — and the failure is a truncated string…
7.4 can compile a set of files once at server start and keep them in memory permanently, skipping the per-request opcache lookup entirely. The catch is that preloaded…
Merging arrays was array_merge, which is a function call in the middle of what is otherwise a literal, and the argument order is not obvious to anyone reading…