shin1x1

<?php

$string = str_repeat(' ', 200000) . 'a';
$start = microtime(true);

preg_replace('/\s+$/', '', $string);
if (preg_last_error() !== 0) {
    var_dump(preg_last_error_msg());
}

shin1x1

<?php

const LOOP = 50;

$mesuare = function (string $title, callable $func): void {
    printf("<h2>%s</h2>", htmlspecialchars($title));
    for ($i = 1; $i <= LOOP; $i++) {
        $start = microtime(true);
        $time = $func() - $start;

shin1x1

<?php

enum Color: int {
    case Red = 1;
    case Blue = 2;
    case Green = 3;
}

function foo(Color $color) {
    var_dump($color);

shin1x1

<?php
declare(strict_types=1);

$i = random_int(1, 2);
var_dump($i);

// match expression
$ret = match ($i % 2 === 0) {
    true => 'even',
    false => 'odd',

shin1x1

<?php

declare(strict_types=1);

for ($i = 0 ; $i < 4 ; $i++) {
    try {
        $no = match ($i) {
            0 => '0',
            1 => throw new RuntimeException(),
            // 2 => continue, Parse error: syntax error, unexpected token "continue"

shin1x1

hello-server:
	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 docker run --rm -v `pwd`:/app -w /app golang:1.15-buster go build -o hello-server

clean:
	-rm hello-server

shin1x1

<?php
namespace Acme;

use Attribute;

@@Attribute
final class Attr1 {}

@@Attr1
final class Foo {}

shin1x1

<?php
namespace Acme;

@@Attribute
final class Attr1 {}

@@Attr1
final class Foo {}

$reflectionClass = new \ReflectionClass(Foo::class);

shin1x1

<?php
declare(strict_types=1);

@@Attribute
final class Attr1 {
    public function __construct(private string $value) {}
}

final class Attr2 {
    public function __construct() {}

shin1x1

https://wiki.php.net/rfc/namespaced_names_as_token

$ docker run --rm php:8.0.0beta2-cli-alpine php -r 'var_dump(token_get_all("<?php namespace new\Foo;"));'
array(5) {
  [0]=>
  array(3) {
    [0]=>
    int(390)
    [1]=>