internal_functions.php

<?php
// TODO: Create your inspect() function here
function inspect($var) {
	$vartype = gettype($var);
	// return "The $vartype is $var";
	switch($vartype) {
		case 'NULL':
			return "The value is NULL";
			break;
		case 'array':
			if($var == []) {
				return "The value is an empty array";
			} else {
				return "The $vartype is " . join($var, ', ') . ')';
			}
			break;
		case 'boolean':
			if($var == true) {
				return "The value is TRUE";
			} else {
				return "The value is FALSE";
			}
			break;
		case 'string':
			if($var == '') {
				return "The string is empty";
			} else {
				return "The string is $var";
			}
			break;
		case 'integer':
			return "The $vartype is $var";
			break;
		case 'double':
			return "The $vartype is $var";
			break;
	}
}
// Do not mofify these variables!
$string1 = "I'm a little teapot";
$string2 = '';
$array1 = [];
$array2 = [1, 2, 3];
$bool1 = true;
$bool2 = false;
$num1 = 0;
$num2 = 0.0;
$num3 = 12;
$num4 = 14.4;
$null = NULL;
// TODO: After each echo statement, use inspect() to output the variable's type and its value
echo 'Inspecting $num1: ' . inspect($num1) . PHP_EOL;
echo 'Inspecting $num2: ' . inspect($num2) . PHP_EOL;
echo 'Inspecting $num3: ' . inspect($num3) . PHP_EOL;
echo 'Inspecting $num4: ' . inspect($num4) . PHP_EOL;
echo 'Inspecting $null: ' . inspect($null) . PHP_EOL;
echo 'Inspecting $bool1: ' . inspect($bool1) . PHP_EOL;
echo 'Inspecting $bool2: ' . inspect($bool2) . PHP_EOL;
echo 'Inspecting $string1: ' . inspect($string1) . PHP_EOL;
echo 'Inspecting $string2: ' . inspect($string2) . PHP_EOL;
echo 'Inspecting $array1: ' . inspect($array1) . PHP_EOL;
echo 'Inspecting $array2: ' . inspect($array2) . PHP_EOL;