using this code add the following steps

$3.$ First, create a PHP file that stores the inventory information $[10$ Marks$].$

i$.$ The inventory should be stored as a $2-$dimensional associative array $($not a numerical array$).$

Use the product categories $($e$.$g$.,$Samsung$,$LG$,$Sony$)$ as the array keys.

The value of each key should be another associative array, which stores the products under

that category $($e$.$g$.,$Neo$,$QLED$,$Crystal$$ stored under $$Samsung$).$ The products will

be the array keys, and their values should be the price of the product $($e$.$g$.,$Neo$=>3000).$

ii$.$ Remember, do not use the examples of TVs in your assignment.

Choose a different type of product!

iii. Create a function called get$\_$categories, which should return an array containing the

keys of the array from step i$.$ Remember, you can use the array$\_$keys function for this.

iv$.$ Create a function called get$\_$products, which requires a $category parameter.

The function should return an array of products stored under the selected $category.

$4.$ Create a new PHP file, which will be used as the header of the website $[4$ Marks$].$

i$.$ This file should add a title to the page $($i$.$e$.,$ using the tag under a