📄 PER-CS v3.1

PHP's coding style is just about to get its new version. 3.1 fixes a few clarity and wording issues but also there are some interesting changes. You can check these yourself, there's a changelog. I'll, instead provide a few numbered code snippets to discuss.

🔸1 — clone with parenthesis

$b = clone($a);
$b = clone($a, [
    'foo' => 'bar',
]);

🔸2 — switch-case-match

switch (true) {
    case (
        $a === 10
        && $b === 20
    ):
        doSomething();
        break;
}

🔸3 — spaces around pipe operator

$result = $input |> trim(...) |> strtoupper(...);

🔸4 — chaining

$result = '<foo>'
    |> strtoupper(...)
    |> htmlspecialchars(...);

🔸5 — empty closures

$noOpFunction = function () {};

// SHOULD be preferred where possible:
$noOpFunction = fn() => null;

🔸6 — anonymous classes

$example = new
    #[Attribute]
    class {
        // ...
    };

🔸7 — enums and scoping (private)

<?php

enum Size
{
    case Small;
    case Medium;
    case Large;

    private const Huge = self::Large;
}

🔸8 - arrays

return [
    'foo',
    'bar',
];

someFunction([
    'foo',
    'bar',
]);

#php #psr12 #percs