daily-email: add 2023-04-19

src/content/daily-email/2023-04-19.md

@@ -0,0 +1,40 @@
+---
+title: >
+  Camel-case or snake-case for Drupal code?
+pubDate: 2023-04-19
+permalink: >
+  archive/2023/04/19/camel-case-or-snake-case-for-drupal-code
+tags:
+  - drupal
+  - php
+---
+
+For some time, [Drupal's PHP coding standards[(https://www.drupal.org/docs/develop/standards/php/php-coding-standards#s-functions-and-variables) allows for writing variables in either snake-case (e.g. `$my_variable`) or lower camel-case `(e.g. $myVariable)`.
+
+It originally only allowed for snake-case variable names but once it accepted both, I switched to camel-case as my default.
+
+Why? I didn't like the inconsistency of using one approach for variable names and one for method and property names in PHP classes (which were always camel-case).
+
+I'd have had code like this with a mixture of both:
+
+```php
+class MyClass {
+
+  private EntityTypeManagerInterface $entityTypeManager;
+
+  public function __construct(EntityTypeManagerInterface $entity_type_manager) {
+    $this->entityTypeManager = $entity_type_manager;
+  }
+
+}
+```
+
+Or even more simply:
+
+```php
+$entity_type_manager = \Drupal::entityTypeManager();
+```
+
+I prefer not to have to consistently think about which to use and, if possible, like to use standard approaches in different codebases whether I'm working on a Drupal project, a Symfony project, or a PHP library.
+
+Plus, I get to use new PHP features like [promoted constructor properties](https://www.oliverdavies.uk/archive/2023/04/12/cleaner-php-code-with-promoted-constructor-properties) if everything is named in the same format.