This is your first experience seeing an array, then you may not quite understand the idea of an array. Assume that you own a business and you need to save the names of all your employees in a PHP variable. Then how would you work about this? It didn’t have much mind to save each name in its own variable. Alternately it would be right to save all the employee names inside of a single variable. These arrays can save numbers, strings and any object but their index will be described by numbers. With default array index starts from zero.