https://endelwar.it/Recent content on EndelWar's BlogHugo -- gohugo.ioen-usManuel Dalla LanaFri, 14 Jul 2023 17:11:14 +0200https://endelwar.it/2023/07/understanding-nullable-indicator-and-null-behavior-in-php-8.1/Fri, 14 Jul 2023 17:11:14 +0200https://endelwar.it/2023/07/understanding-nullable-indicator-and-null-behavior-in-php-8.1/In PHP, as in many other programming languages, null is a special type that represents the absence of a value or a reference to a non-existent value. However, the way null interacts with other types in PHP can be a source of confusion, especially when it comes to typing. Nullable Types and the ? Operator Starting from PHP 7.1, PHP supports nullable types using the ? operator which can be placed in front of a type name.https://endelwar.it/2021/07/generating-pdf-on-php-with-weasyprint-with-batteries-included/Mon, 19 Jul 2021 16:29:21 +0200https://endelwar.it/2021/07/generating-pdf-on-php-with-weasyprint-with-batteries-included/Everyone loves PDF: CEOs, CFOs, marketing people, even the postman and the milkman, everyone except developers that need to convert HTML pages to PDF. Fortunately, there are quite a few libraries that help the poor PHP developer in his task, some are native implementations, others are a wrapper for a CLI application. One of these is Snappy , a popular (22M+ downloads) library that wraps wkhtmltopdf. wkhtmltopdf is good, until you encounter that HTML code that renders awfully or you hit one of wkhtmltopdf’s missing features, that’s what happened to me.https://endelwar.it/2020/09/manage-php-symlink-deploy-with-caddy-2.2/Tue, 15 Sep 2020 11:21:40 +0200https://endelwar.it/2020/09/manage-php-symlink-deploy-with-caddy-2.2/I use Deployer as the deployment tool for websites and web apps that I develop: it’s a fine piece of software that permits releasing software very quickly, and the whole process becomes a no-brainer. Deployer uses the following directory structure to organize your code: . ├── current -> releases/91 ├── releases │ ├── 87 │ ├── 88 │ ├── 89 │ ├── 90 │ └── 91 └── shared ├── config ├── private ├── public └── var The last 5 (quantity is configurable) releases are in releases directory, and the last one is symlinked to current, which, probably, contains public directory that is the root directory for your web server.https://endelwar.it/2020/08/filter-users-by-role-in-symfony-5/Mon, 17 Aug 2020 23:06:21 +0200https://endelwar.it/2020/08/filter-users-by-role-in-symfony-5/Ever needed to retrieve a list of users from a Doctrine repository having a single role? Like, get all users with ROLE_ADMIN or ROLE_USER? If you go the “easy way” filtering with LIKE you can expect some surprises: what will this function returns when $role = 'ADMIN' and you both have roles named ROLE_ADMIN and ROLE_SUPER_ADMIN ? <?php public function findByRoleWrongWay(string $role) { return $this->createQueryBuilder('u') ->andWhere('u.roles LIKE :role') ->setParameter('role', 'ROLE_%"' .https://endelwar.it/2020/08/hello-world./Thu, 13 Aug 2020 18:12:36 +0200https://endelwar.it/2020/08/hello-world./I decided to (re)start writing: I’ve never been a great creator of contents, as my lyceum’s professors maybe remember, and I want to change this. So here is my blog, it will contain notes about what I found useful for me and my job as a web developer, or something worth sharing with the developer’s community. My first blog (started in 2007 and abandoned in 2012) was in Italian, I want to write more in English, this way I can reach more people that could give me feedback on what I’m doing.https://endelwar.it/contact/Fri, 03 Apr 2015 02:13:50 +0000https://endelwar.it/contact/Contact Hi, I’m glad you want to reach me! You can write me at manuel@dallalana.it .