In PHP, the foreach loop can only access the values of an array, not the keys.

In PHP, the foreach loop allows you to access both the keys and values of an array. During each iteration, you can use the "key" variable to access the key/index of the current element, and the "value" variable to access the value of the element. This allows you to work with both the keys and values simultaneously. The foreach loop provides a convenient way to iterate over arrays and perform operations on each element. Learn more: https://www.php.net/manual/en/control-structures.foreach.php