Question

Say I have this array

$array = array('pen' => 'blue', 'paper' => 'red', 'ink' => 'white');

When I loop through it

$string = '';
foreach ($array AS $key=>$value) {
    $string .= $key . ' = ' . $value;
}

I want to get the “line number” of the element the loop is currently on.

If the loop is on “pen” I would get 1.
If the loop is on “paper” I would get 2.
If the loop is on “ink” I would get 3.

Is there an array command for this?

Answer 1

No. You will have to increment an index counter manually:

$string = '';
$index = 0;
foreach ($array as $key=>$value) {
    $string .= ++$index . ") ". $key . ' = ' . $value;
}