The foreach loop in PHP is used exclusively for arrays.

The foreach loop in PHP is used to iterate over each element in an array. It allows you to access both the keys and values of the array elements during each iteration. The "key" variable represents the key/index of the current element, while the "value" variable holds the value of the element. This loop construct is particularly useful when you need to process each element of an array without explicitly managing the iteration counter. Learn more: https://www.php.net/manual/en/control-structures.foreach.php