A PHP script to count and generate all possible combinations from a given set of strings.
Sample Calculations Using ['A', 'B', 'C', 'D'] Set.
Combinations are the way of selecting objects or numbers from a group of objects or collections, in such a way that the order of the objects does not matter.
To calculate this we have to multiply the count of input character/word array with the required character length.
Eg: 4^3=64 calculates 3 character long combinations from a 4 character long input data set.
A permutation is an act of arranging objects or numbers in order.
Ibrahim Rasheed
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