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Baptiste Pesquet
bpesquet
Software engineer, computer science and AI teacher, PhD student.
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Collection of License badges for your Project's README file.
This list includes the most common open source and open data licenses.
Easily copy and paste the code under the badges into your Markdown files.
Notes
The badges do not fully replace the license informations for your projects, they are only emblems for the README, that the user can see the License at first glance.
Translations: (No guarantee that the translations are up-to-date)
Post explaining why objects often use less memory than arrays (in PHP)
Why objects (usually) use less memory than arrays in PHP
This is just a small post in response to [this tweet][tweet] by Julien Pauli (who by the way is the release manager for PHP 5.5). In the tweet he claims that objects use more memory than arrays in PHP. Even though it can be like that, it's not true in most cases. (Note: This only applies to PHP 5.4 or newer.)
The reason why it's easy to assume that objects are larger than arrays is because objects can be seen as an array of properties and a bit of additional information (like the class it belongs to). And as array + additional info > array it obviously follows that objects are larger. The thing is that in most cases PHP can optimize the array part of it away. So how does that work?
The key here is that objects usually have a predefined set of keys, whereas arrays don't:
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