Sand Fox (Posts about php 8)

IsResource

2021-09-28T04:42:00+03:00

Inspired by a recent discussion in the PHP Internals, I decided to provide a userland solution. Check this:

<?php

$hash = hash_init('md5');

// vanilla functions:
is_resource($hash); // true in PHP <= 7.1, false in PHP >= 7.2
get_resource_type($hash); // "Hash Context" in PHP <= 7.1, various errors otherwise

// library functions:
\Arokettu\IsResource\is_resource($hash); // true
\Arokettu\IsResource\get_resource_type($hash); // "Hash Context"

Get it on my dev portal: https://sandfox.dev/php/is-resource.html

PHP 8.0 Comparison Change

2020-10-22T23:00:00+03:00

Another new thing in PHP 8.0 will be slightly less madness in non strict value comparison.

OOP in PHP 4 and 8

2020-10-02T15:03:00+03:00

Deprecation of class name constructors means that you no longer can write OOP code that works both in PHP 4 and PHP 8 without some hackery. This works however:

<?php

class WorksIn4And8
{
    var $int;

    // Regular method in PHP 4
    // Constructor in 5-8
    function __construct($int)
    {
        error_log('__construct()');
        $this->int = $int;
    }

    // Constructor in PHP 4
    // Constructor overridden by __construct in 5-7
    // Regular method in PHP 8
    function WorksIn4And8($int)
    {
        error_log('WorksIn4And8()');
        $this->__construct($int);
    }

    function getInt()
    {
        return $this->int;
    }
}

$obj = new WorksIn4And8(48);

var_dump($obj->getInt());

PHP 8.0 Syntax Showcase

2020-09-30T16:54:00+03:00

Since RC1 is released today, I decided to make a small demonstration of PHP 8.0 syntax features.

<?php

#[FuncAttribute]
function func(SplHeap|ArrayObject|null $object, mixed $value = null): ArrayAccess|false
{
    return match ($object?->count()) {
        0, null => throw new RuntimeException(),
        default => $object,
    };
}

try {
    func(object: new ArrayObject());
} catch (RuntimeException) {
    // ignore
}

I released the first PHP 8 library ever

2020-07-03T22:12:00+03:00

At least among the libraries listed on the Packagist. On this Tuesday sandfoxme/bencode was updated to 2.0 that requires PHP 8 as a minimum. While it was meant mostly as an experiment and a joke, it allowed me to try some new features like Stringable interface and remove some old compatibility handling thanks to mbstring.func_overload being finally removed.