Spreading the News – An Exploration of PHP’s Spread Operator

A few days ago, I wrote about array unpacking and variadic arguments in PHP8. I’m a big fan of these features, and use them extensively, and the changes in PHP8 make them even more useful.

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Named Arguments and Variadics in PHP 8

One of the new features of PHP 8 is named arguments. It’s one of those features that I love as an end user developer; although it can be a nightmare for library and framework developers, because argument names are now part of the API for public methods, not simply the argument types, and any change to an argument name becomes a backward-compatible break.

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Loving you wasn’t easy.

Loving you wasn’t easy.

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Confronting our Demons

Confronting our own inner demons is the hardest battle we ever have to face, especially when they’re so deep-rooted after so many years: filling in the holes that each leaves behind with hope, because that’s all that I have at the moment. I’m feeling a little like Pandora’s Box.

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A Reverse-Retrospective: Places that I’m looking forward to visiting in 2021

With all the closures and travel restrictions in place during last year, there are so many places that I wanted to visit, but wasn’t able to. So rather than a look back at last year (with so much trauma and negativity), I’m going to look forward (and positively) to where I’ll be able to go this year as lockdown eases, and travel becomes possible again. There are so many places in Europe and across the world that I want to go, but I’m going to limit myself to the Netherlands at the moment, places just a few hours drive or train journey from where I live.


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Under the Radar? A Backwards-Compatible Break for SPLFixedArray in PHP 8

The official release date for PHP 8 is 26th November, just 9 days away, so we’re almost into the last week; and I’ve just discovered a change to SPLFixedArray that I wasn’t previously aware about. While not many developers use SPL Datastructures, and probably fewer still use SPLFixedArray, it is a big BC break; and it wasn’t something that I had seen documented as a PHP 8 change.

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An Attempt at Poetry

It’s been nearly two months since my last post, two months trying to pull myself out from the state that I’d got myself into. 2020 isn’t a forgiving year, and I’m hurting myself and others with the darkness that I’ve found myself facing.

So I’m trying to express some of my emotions in poetry (of a sort) in English, and also in Dutch.

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Fear and Self-Loathing in Amsterdam

 

I must not fear.
Fear is the mind-killer.
Fear is the little-death that brings total obliteration.
I will face my fear.
I will permit it to pass over me and through me.
And when it has gone past I will turn the inner eye to see its path.
Where the fear has gone there will be nothing.
Only I will remain.

– Bene Gesserit Litany Against Fear, Dune series of books, written by Frank Herbert

As an Englishman of a certain generation, I was brought up to believe that it was bad to show emotions, that I should keep everything bottled up inside… “stiff upper lip”, “it just isn’t the done thing”, “it’s a sign of weakness”, and all that. If you’re scared, then you should put on a brave face: if things are going badly, then still look cheerful and don’t let anybody know how unhappy you are.

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Citizen of Nowhere

Tonight at midnight (local time) I become a “citizen of nowhere”.

european-union-eu-flag-missing-star-brexit

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Filtering and Mapping with SPL Iterators

Four or five years ago, the most popular talk that I gave at conferences was entitled “A Functional Guide to Cat Herding with PHP Generators” (the cats proved a very enjoyable talking point at every event where I gave it, because who doesn’t enjoy a technical talk featuring cats); and I even wrote a blog post here about that self-same topic. That presentation described how I was building up enormous volumes of GPX tracking data showing where my cats roamed each day. In order to analyse that data without using equally enormous amounts of memory, I read it directly from the GPX files, using Generators to process each trackpoint one at a time; and and took a map, filter, reduce approach to resolving the questions I wanted to answer about my cats movement habits. Because PHP’s standard array_map(), array_filter() and array_reduce() functions only work with arrays of data, which are expensive in terms of their memory usage, I wrote my own versions of those functions to work with Traversable objects (like Iterators and Generators) as well as with arrays. And the technical body of the talk was how I wrote and used my versions of these functions.

I chose to write the functions myself as a learning exercise, to better understand how they (and Traversables like Generators) worked; but for map and filter, I could just as easily have used the Iterators that already existed in the Standard PHP Library (SPL).

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