Reference

A

The A class provides a set of handy methods to simplify array handling and make it more consistent. The class contains methods for fetching elements from arrays, merging and sorting or shuffling arrays.

The methods of the A class are called statically, i.e. without you having to create an object of the class first.

$colors = ['blue', 'yellow', 'green'];

if (A::isAssociative($colors)) {
  return 'Hurray! An associative array';
}