Working with Arrays in PHP

1. What Are Arrays?

Arrays are data structures that allow you to store multiple values in a single variable.
They are essential for managing collections of data, such as lists of users, products, or records.

Indexed Arrays: Arrays where each value is assigned an index, starting from 0.
Associative Arrays: Arrays where keys are strings, allowing you to store data with meaningful identifiers.
Multidimensional Arrays: Arrays containing one or more arrays, enabling complex data structures.

Dynamic Size: PHP arrays can grow or shrink dynamically as elements are added or removed.
Versatility: Arrays can store any type of data, including strings, numbers, objects, and even other arrays.
Built-In Functions: PHP provides a wide array of functions for array manipulation, such as:
- count() - Counts the number of elements in an array.
- array_push() - Adds one or more elements to the end of an array.
- array_pop() - Removes and returns the last element of an array.
- array_merge() - Merges two or more arrays into one.
- sort() - Sorts an array in ascending order.

Use associative arrays for better readability when the data has meaningful labels.
Utilize PHP's built-in array functions to simplify common operations.
When dealing with large arrays, consider the memory implications.

Arrays
Arrays Revisited
$_GLOBAL Array Example
$_SERVER Array Example
Your creative assignment is to demonstrate your command of arrays. I suggest you use a form to gather values and store those values in an arrays. Then do array manipulations to show both your command at using arrays and your investigation into the vast assortment of PHP array functions at your command.

Again, present your findings in a clear and consistent manner for grading.