The PHP foreach loop is the best and easiest way to iterate through an array. Here are some examples of the foreach loop.

Basic PHP foreach with echo:

$array = array(0, 1, 2, 3, 4, 5);
foreach ($array as $value) {
    $output = $value * 10;
    echo "$output<br>";
}

This will look like:

0

10

20

30

40

50

To count the loops:

$i = 0;
$array = array(0, 1, 2, 3, 4, 5);
foreach ($array as $value) {
   $i++;
   $output = $value * 10;
   echo "$output loop: $i<br>";
}

This will look like:

0 loop: 1

10 loop: 2

20 loop: 3

30 loop: 4

40 loop: 5

50 loop: 6

To stop the foreach at 4 loops:

$i = 0;
$array = array(0, 1, 2, 3, 4, 5);
foreach ($array as $value) {
   $i++;
   $output = $value * 10;
   echo "$output loop: $i<br>";
   if ($i++ == 4) break;
}

This will look like:

0 1

10 2

20 3

30 4

PHP foreach within an array of arrays:

$array = [
    [0, 1, 2],
    [3, 4, 5],
];
foreach ($array as list($a, $b, $c)) {
    echo "A: $a; B: $b C: $c<br>";
}

This will look like:

A:0 B:1 C:2

A:2 B:3 C:4