internal_functions.php

<?php
function inspect($a){
	if(isset($a)){
		if(is_array($a)){
			return "Type is " . gettype($a) . " with a value of (REFER TO ABOVE)". var_dump($a) . PHP_EOL . PHP_EOL;
		}elseif(is_bool($a) && ($a == false)){
			return "Type is " . gettype($a) . " with a value of '0'" . PHP_EOL . PHP_EOL;
		}else{
			return "Type is " . gettype($a) . " with a value of '$a'" . PHP_EOL . PHP_EOL;
		}
	}else{
		return "Type is " . gettype($a) . " with an EMPTY value" . PHP_EOL . PHP_EOL;
	}
}
// 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 $num1:' . PHP_EOL;
echo inspect($num1);
echo 'Inspecting $num2:' . PHP_EOL;
echo inspect($num2);
echo 'Inspecting $num3:' . PHP_EOL;
echo inspect($num3);
echo 'Inspecting $num4:' . PHP_EOL;
echo inspect($num4);
echo 'Inspecting $null:' . PHP_EOL;
echo inspect($null);
echo 'Inspecting $bool1' . PHP_EOL;
echo inspect($bool1);
echo 'Inspecting $bool2' . PHP_EOL;
echo inspect($bool2);
echo 'Inspecting $string1' . PHP_EOL;
echo inspect($string1);
echo 'Inspecting $string2' . PHP_EOL;
echo inspect($string2);
echo 'Inspecting $array1' . PHP_EOL;
echo inspect($array1);
echo 'Inspecting $array2' . PHP_EOL;
echo inspect($array2);
?>