Question:What is the simplest method of computing the sum of all the elements of an array? 

A By traversing the array with a for loop 
B By traversing the array with a foreach loop 
C By using the array_intersect function 
D By using the array_sum function 
E By using array_count_values() 

+ Answer
D 

+ Explanation
The array_sum function calculates the sum of all the elements of an array. Therefore, Answer D is correct.

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Mohammad Towhidul Islam

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