如何添加数组的所有值并除以条目总数？

Question

I have an array $prices = array();. This array contains a number of entries that show a price.

For example € 2.500

My goal is to add all this values and have the average number. But first, to have the € 2.500 in the format of 2500

This is what I know and it is done by using

preg_replace('/[^0-9]/i', '', $variable);

What is a way to accomplish this?

Thank you

Answer 1

You can use array_map to apply that regex to each element.

$avg = array_sum(array_map(function($v){
    return preg_replace('/[^0-9]/i', '', $v);
}, $prices)) / count($prices);