southern writes:  

You are probably using array every day as a PHP developer, because it is the default collection type of data structure in PHP. What you might not be aware is that PHP provides tons of built-in array manipulation functions, they are more efficient compared to user land solution, because they are built into the core and designed to handle most of edge cases.

In this series of tutorials, we will be going through some built-in array functions. Show their possible use cases as comprehensively as we can. Hopefully this series will improve the way you deal with PHP array and make your code better.

Throughout the whole series, we will be operating on an array called $books:

more: Star Tutorial