Posts about PHP

PHP 8.0 Comparison Change

Oct 22, 2020

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

Read more…

Category: PHP • Tags: php 8

OOP in PHP 4 and 8

Oct 2, 2020

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());

Category: PHP • Tags: php 4, php 8

PHP 8.0 Syntax Showcase

Sep 30, 2020

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
}

Category: PHP • Tags: php 8

Method Calls with Arbitrary Names

Jul 24, 2020
A discovery of the day. Many people know that you can define and read an object property with an arbitrary name:
```
<?php

$s = new stdClass();
$s->{'any string here'} = 123;
echo $s->{'any string here'}; // 123
```
Read more…
Category: PHP
I released the first PHP 8 library ever

Jul 3, 2020

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.

Category: PHP • Tags: php 8
sabre/xml

Jun 10, 2020

An awesome discovery of today was made in an article titled An XML library for PHP you may not hate. As an unexpected twist I really didn't hate it, in fact it helped me to solve a problem that I had. It is called sabre/xml and it's a part of the sabre/dav project.

Read more…

Category: PHP • Tags: sabre/dav, xml

Install Composer in Docker

Apr 2, 2020

Here is a small snippet adapted from the official instruction:

RUN php -r "copy('https://composer.github.io/installer.sig', '/tmp/composer.sig');" && \
    php -r "copy('https://getcomposer.org/installer', '/tmp/composer-setup.php');" && \
    php -r '$expected = file_get_contents("/tmp/composer.sig"); $actual = hash_file("sha384", "/tmp/composer-setup.php"); exit(intval(!hash_equals($expected, $actual)));' && \
    php /tmp/composer-setup.php --install-dir=/usr/local/bin --filename=composer && \
    chmod +x /usr/local/bin/composer && \
    rm /tmp/composer-setup.php /tmp/composer.sig

It doesn't require a script file, doesn't deal with environment variables, and doesn't depend on the shell.

Posts about PHP

PHP 8.0 Comparison Change

OOP in PHP 4 and 8

PHP 8.0 Syntax Showcase

Method Calls with Arbitrary Names

I released the first PHP 8 library ever

sabre/xml

Install Composer in Docker

PHP 7.4: Splat Inconsistency

Encryptor

Composer Yaml