ArrayHelper

Open source code

Methods Summary
`public static`	# `flatten( array $input , string $keySeparator = '.' )` /** Flattens array into a one-dimensional array. Each key in the returned one-dimensional array is the join of all keys leading to each (non-traversable) value, in all dimensions, separated by a given separator.
`public static`	# `groupByKey( array $records , $key )`
`public static`	# `groupBy( array $records , callable $keySelector )`