How to Efficiently Sum the Values of a Specific Column in a Multidimensional Array?

Summation of Column Values in a Multidimensional Array

The task at hand presents a scenario where a multidimensional array contains a column named 'f_count' with numeric values. The objective is to determine the sum of all values in this column.

Initially, the provided code attempts to employ array_sum() to solve this problem. However, this function is designed for one-dimensional arrays. As a result, alternative approaches have been explored, such as using foreach loops to isolate the 'f_count' values.

One efficient solution for PHP versions 5.5 and above utilizes the combination of array_column() and array_sum(). Here's the code snippet:

$value = array_sum(array_column($arr, 'f_count'));

This code first employs array_column() to extract only the 'f_count' values from the multidimensional array $arr, creating a one-dimensional array. Subsequently, array_sum() is invoked on this simplified array to obtain the total sum.

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