array_reduce
array_reduce — Iteratively reduce the array to a single value using a callback function.Description
array_reduce( array $array,array_reduce() applies iteratively the callback function to the elements of the array, so as to reduce the array to a single value.
callable $callback,
mixed $initial = null ): mixed
Parameters
array
The input array.
callback
The callback function. callback(mixed $carry, mixed $item): mixed
initial
If the optional initial is available, it will be used at the beginning of the process, or as a final result in case the array is empty.
Return Values
Returns the resulting value.If the array is empty and initial is not passed, array_reduce() returns null.
More information about array_reduce on official PHP documentation site
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