How Can I Efficiently Sum the Values in a Specific Column of a Multidimensional Array in PHP?

Efficiently Summing Values in Multidimensional Array's Column

In this scenario, you have a multidimensional array with a column labeled "f_count" and wish to calculate its sum without using a foreach loop. To achieve this, utilize the array_column function in PHP 5.5 , specifically tailored for processing multidimensional arrays.

The syntax is straightforward:

$f_count_values = array_column($original_array, 'f_count');

This will extract all values from the "f_count" column into a new array, effectively isolating them. Subsequently, you can employ array_sum to swiftly compute the total:

$f_count_sum = array_sum($f_count_values);

The final result, $f_count_sum, represents the accumulated sum of the "f_count" column.

Alternatively, you could alter your query to avoid creating a multidimensional array. By modifying the query to the following:

SELECT SUM(f_count) FROM users WHERE gid=:gid

you can directly retrieve the sum without the need for any array manipulation.

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