How to View Array Contents in PHP

You cannot view the entire contents of an array using echo. If you try to do this, the word Array will simply be displayed on the screen:

<?php
	$a = [1, 2, 3];
	echo $a; // will output 'Array'
?>

To make PHP display all the elements of the array, you need to use the function var_dump:

<?php
	$a = [1, 2, 3];
	var_dump($a);
?>

Given an array:

<?php
	$a = ['a', 'b', 'c'];
?>

Display this array on the screen using the command echo and using the function var_dump.