Associative Array performs same function as that of Indexed Array but unlike Indexed Array which uses Numeric Index,
Associative Array uses a String Index for referring to an element of array.
In PHP, if you want to create an associative array, you are required to use the => operator.
Associative Array can be specified in following two different ways
With the use of array() construct
With the use of array operator
Specifying an associative array using the array() construct