In PHP, how do I compare arrays with built-in functions?

In PHP, you can compare arrays using several built-in functions that help you to determine their differences, similarities, and whether they are equal.

Array Comparison Functions

Here are some useful built-in functions for comparing arrays in PHP:

• array_diff() - Compares the values of two arrays and returns the differences.
• array_intersect() - Compares the values of two arrays and returns the common values.
• array_diff_assoc() - Compares the keys and values of two arrays, returning the differences.
• array_diff_key() - Compares the keys of two arrays and returns the differences.
• == - Compares two arrays for equality.

Below is an example showing how to use some of these functions: