php – Page 65 – Türker Yıldırım

The OPcache file cache, for when shared memory resets

NoteMarch 22, 20161 min read

OPcache keeps compiled bytecode in shared memory, which is empty after every restart — so the first requests following a deploy or an FPM reload each pay full…

session_start() takes its options inline

NoteMarch 22, 20161 min read

Session settings had to be applied with ini_set() before session_start(), in the right order, from somewhere that ran early enough — which is why so many applications have…

composer outdated separates safe from breaking

NoteMarch 15, 20161 min read

composer show –latest lists everything with a newer version, which on a mature project is forty lines that all look equally urgent and are not. The –minor-only list…

Scalar type declarations are a per-file decision

NoteFebruary 15, 20162 min read

PHP 7 added scalar type hints and then made them optional in a way that surprises people: without declare(strict_types=1) the engine coerces, so a function typed int happily…

composer why explains a version you did not choose

NoteFebruary 3, 20161 min read

When Composer installs an old version of something you never asked for, the answer is always a transitive constraint — and reading composer.lock to find which package imposed…

Upgrading a production application to PHP 7

Deep diveFebruary 2, 201614 min read

Twice the throughput and half the memory, for a migration that is mostly deletions — plus the four behaviour changes nobody puts in the upgrade notes.

Model events fire on the model, not on the query builder

NoteFebruary 2, 20161 min read

Eloquent fires saving, created, deleted and the rest when a model instance is saved. A mass update or delete goes straight to the query builder and fires nothing…

Implicit route model binding removes the find()

NoteJanuary 26, 20162 min read

Every controller method that takes an id begins the same way: find the record, check it exists, abort with a 404. Multiply that by every route and it…

strict_types applies to the calls a file makes, not the calls it receives

NoteJanuary 19, 20161 min read

The rule reads backwards from how everyone assumes it works. declare(strict_types=1) governs the calls made from that file, not the calls made into the functions declared in it.…

list() is a language construct and never was a function

NoteJanuary 14, 20161 min read

list() looks like a function call and behaves like an assignment target, which is why it can appear on the left of = and why it cannot be…