🐮 👨🏻‍🔧 ↗️ PHP-Digest # 192 (November 2

Fresh selection with links to news and materials. In release: The latest PHP 8.0 release candidate before the final release and fresh materials on PHP 8, RFCs and discussions from PHP Internals, a portion of useful tools, streams, podcasts, articles.

Enjoy reading!

News and releases

PHP 8.0 RC 4 — - PHP 8, 26 .

PHP 8:
- Larry Garfield: .
- PHP 8 Spatie.
- PHP 8 `@` , : E_ERROR, E_CORE_ERROR, E_COMPILE_ERROR, E_USER_ERROR, E_RECOVERABLE_ERROR, E_PARSE.
- WeakMap PHP 8 .
- JIT PHP 8.
, PHP 8 PECL. - Dockerfile, . PECL FriendsOfPHP/pickle.
```
RUN curl -L -o /tmp/pickle.phar https://github.com/FriendsOfPHP/pickle/releases/latest/download/pickle.phar; \
    mv /tmp/pickle.phar /usr/local/bin/pickle; \
    chmod +x /usr/local/bin/pickle; \
    pickle install xdebug; \

RUN echo "extension=xdebug.so" >> $PHP_INI_DIR/conf.d/php.ini; \
```
Or like this:
```
RUN mkdir -p /usr/src/php/ext/xdebug && \
    curl -fsSL https://pecl.php.net/get/xdebug | \
    tar xvz -C "/usr/src/php/ext/xdebug" --strip 1 && docker-php-ext-install xdebug
```
phpcommunity.ru — PHP- , , .
- 30, MySQL vs Postgres .
- PHP ( ).
: PHP- , 19 ; Online- PHP SimbirSoft, 20 .

PHP Internals

[Draft] Closure self reference — . $lambda, . $this .

$fibonacci = function (int $n) use (&$fibonacci) {
    if ($n === 0) return 0;
    if ($n === 1) return 1;
    return $fibonacci($n-1) + $fibonacci($n-2);
};

// =>

$fibonacci = function (int $n) {
    if ($n === 0) return 0;
    if ($n === 1) return 1;
    return $lambda($n-1) + $lambda($n-2);
};

[PR] Support for <func>::function syntax — ::function ( ::fn) ::class. , .
[Discussion] Alias for `int|float` — number numeric int | float. , TypeScript: type Number = Foo|Bar;.

mnavarrocarter/php-fetch — fetch WebApi PHP . HTTP- :

use function MNC\Http\fetch;

$response = fetch('https://habr.com');

echo $response->status()->code();   // 200

echo buffer($response->body());
// or
while (($chunk = $response->body()->read()) !== null) {
    echo $chunk;
}