给定一个数组数组，如何从每个值中去掉子串“GB”？

Question

Each item in my array is an array of about 5 values.. Some of them are numerical ending in "GB".. I need the same array but with "GB" stripped out so that just the number remains.

So I need to iterate through my whole array, on each subarray take each value and strip the string "GB" from it and create a new array from the output.

Can anyone recommend and efficient method of doing this?

Answer 1

You can use array_walk_recursive() for this:

array_walk_recursive($arr, 'strip_text', 'GB');

function strip_text(&$value, $key, $string) {
  $value = str_replace($string, '', $value);
}

It's a lot less awkward than traversing an array with its values by reference (correctly).