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What is a Cumulative Sum Array?

Using a for Loop

A cumulative sum array is an array where each element at index i is the sum of the elements from the original array up to index i. For example, given the array [1, 2, 3, 4], the cumulative sum array would be [1, 3, 6, 10].

Different approaches to creating an array of Cumulative Sum in PHP:

Table of Content

  • Using a for Loop
  • Using array_reduce() Function
  • Using array_map() Function with Closure

Create an Array of Cumulative Sum in PHP

The cumulative sum array is an array where each element is the sum of all previous elements in the original array up to the current index. This article explores different methods to create an array of cumulative sums in PHP.

Similar Reads

What is a Cumulative Sum Array?

A cumulative sum array is an array where each element at index i is the sum of the elements from the original array up to index i. For example, given the array [1, 2, 3, 4], the cumulative sum array would be [1, 3, 6, 10]....

Using a for Loop

A basic method to create a cumulative sum array is to use a for loop to iterate through the original array and calculate the sum step by step....

Using array_reduce() Function

The array_reduce() function can be used to accumulate values, and we can use it to create a cumulative sum array by keeping track of the sums in an external variable....

Using array_map() Function with Closure

Another approach is to use array_map() with a closure to create the cumulative sum array. This method is more functional and concise....

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#PHP #PHP Programs #Web Technologies

Using a for Loop