Jeff Madsen has created a new free ebook, Laravel Collections Unraveled, that explores Laravel collections
About the book
In "Laravel Collections Unraveled" we are going to see just what is so amazing about this class by digging down under the hood to understand the full range of functions availalble, and create practical examples of each of them that we can use right away. In the process, we're going to perhaps improve our basic PHP skills a bit by getting more familiar with ArrayObjects, CachingIterators, IteratorAggregates and some other handy tools.
Table of Contents:
What are Collections?
The functions - Array Mimicking
The functions - Array Mechanics
The functions - Array Wrappers
The functions - Ways to sort
The functions - Ways to filter
The functions - Ways to loop, transform and misc. methods
Support Collections vs. Eloquent Collections