Freek.dev

Laravel / PHP / AI

Posts tagged with php

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A Laravel webshop original

by Freek Van der Herten – 3 minute read

Earlier today Spatie, the company where I work, launched a webshop polkadots.be. When the project started one of the first choices that we had to make was if we were going to use an existing solution or build our own custom solution. For this project we took an extensive look at some existing…

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Excel exports

Evan Miller makes the case for offering xls-exports instead of csv-exports.

Most people of your website’s users are also Excel users. When they export their data as CSV, they’ll probably just bring it into Excel first to have a look around. You should probably offer an explicit XLS export, and take it seriously.
http://www.evanmiller.org/please-offer-an-excel-export-option.html

An xls-file is capable of things that 'll never be possible in csv:

  • freezing the header row
  • formatting important cells
  • multiple sheets in one file
  • specify numer formatting
  • formulas
In the projects I've been working on I've been doing this for a couple of months. A nice Laravel package you can use is Laravel Excel.

This is how you export all values from a given repository that returns Eloquent models:


Excel::create($pathToFile, function($excel) {

    $excel->sheet('The sheet name', function($sheet) {
        $sheet->freezeFirstRow();

        $sheet->cells('A1:Z1', function($cells) {
            $cells->setFontWeight('bold');
            $cells->setBorder('node', 'none', 'solid', 'none');
        });

        $sheet->fromModel($this->yourOwnRepository->getAll());
    });

})->export('xls');

The result is an excel-file with the header row frozen and underlined and it's values in bold.

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Functional programming in PHP

Almost a year ago Igor Wiedler wrote three articles on his blog about the state of functional programming in PHP.

The first article explores iteration. You'll learn to turn this


$admins = [];
foreach ($users as $user) {
    if (is_admin($user)) {
        $admins[] = $user;
    }
}

into this


use function iter\filter;
$admins = filter('project\user\is_admin', $users);

In the second one he explains a very nice way to traverse an associative array. How you currently do it:


$baz = (isset($data['foo']['bar']['baz'])) ? $data['foo']['bar']['baz'] : null;

How you'll do it in the future:


use function igorw\get_in;
$baz = get_in($data, ['foo', 'bar', 'baz']);

The final article shows you a nice syntax to handle objects that return null-values.

All the articles mention libraries that you can use in your code today.

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Inside Composer's speed boost

If you've been following the news, you'll have noticed that yesterday Composer got a bit of a speed boost. And by "bit of a speed boost", we're talking between 50% and 90% reduction in runtime depending on the complexity of the dependencies. But how did the fix work? And should you make the same sort of change to your projects? For those of you who want the TL/DR answer: the answer is no you shouldn't.
http://blog.ircmaxell.com/2014/12/what-about-garbage.html

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Add Two-Factor authentication to your Laravel application

Authy makes it easy to integrate two-factor authentication into your existing Laravel application. It's user-end implementation is versitile, offering support for both smart-phones and standard phones. Furthermore, implmentation with its API is easy and seamless. Finally, its analytics and data tracking can you provide insights into your users and how they interact with your application's authentication system.

This tutorial assumes that you have an Authy developer account (which can be created here ), an application (either testing or production), and your application's API key.

http://blog.enge.me/post/installing-two-factor-authentication-with-authy

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