Sequence number of foreach traversal?

Question

PHP

Hi all. Is there some standard way to calculate how many times a foreach loop goes through? Maybe some standard variable stores this value?
So you don't have to write like this:

$i = 0;
foreach($arr as $val) {
// тело цикла
$i++;
}

Answer 1

This is the "standard way".
If the array is indexed, and with indices 0, 1, 2, 3..., then it can be simpler:

foreach ($arr as $i => $val) {
    // тело цикла
}

If the array is associative but you don't need its keys:

foreach (array_values($arr) as $i => $val) {
    // тело цикла
}