Util

, _(*1)

General purpose helper methods, _(*2)

Array Helpers

Arr::toAssoc - convert a random array to a strict structure - every entry has a string key
Arr::invoke - if the array holds only objects, aggregate the results of a method call on all the objects
Arr::pluckProperty - aggregate the value of a property of each object in the array
Arr::pluckUniqueProperty - aggregate the value of a property of each object in the array, only unique values
Arr::pluck - aggregate all the values of entries with a given key
Arr::flatten - flatten all the values of nested arrays
Arr::groupBy - group by result of callback

Objects::invoke - aggregate the results of a method call on all the objects
Objects::filter - similar to array_filter, but for SplObjectStorage
Objects::toArray - convert SplObjectStorage into an array
Objects::fromArray - convert an array into a SplObjectStorage
Objects::sort - sort a SplObjectStorage using a comparation closure
Objects::groupBy - change SplObjectStorage where the "key" object is the result of a callback, and all the other objects are grouped by them