foreach.php

<?php

// $numbers = ['zero', 'one', 'two', 'three', 'four', 'five'];

/* for ($i = 0; $i < count($numbers); $i++) { */
/*     $number = $numbers[$i]; */
/*     echo 'The number is: ' . $number . '!' . PHP_EOL; */
/* } */

// foreach ($numbers as $number) {
//     echo 'The number is: ' . $number . '!' . PHP_EOL;
// }

// $animalTypes = array('dogs', 'cats', 'birds', 'narwhals');
// foreach ($animalTypes as $animalType) {
//     echo 'The totally real existent animal type is: ' . $animalType . '!' . PHP_EOL;
// }

// 1. Construct a loop that iterates through each value and outputs its type as either an integer, float, boolean, array, null, or string.

// 2. Construct a loop that iterates through each value and outputs only values with a type that is scalar.

// Output 
	// Sgt.Peeper
	// 11

// Array (loop through the inner array display here)
// 3.14
// 12 + 7
// 11

$things = array('Sgt. Pepper', "11", null, array(1,2,3), 3.14, "12 + 7", false, (string) 11);
foreach ($things as $thing) {
	if (is_array($thing)) {
		foreach($thing as $value) {
			echo "$value" . PHP_EOL;
		}
}	else if (is_bool($thing)) {
		echo "{$thing} is boolean" . PHP_EOL;
}	else if (is_float($thing)) {
		echo "{$thing} is a float" . PHP_EOL;
}	else if (is_double($thing)) {
		echo "{$thing} is an alias of float" . PHP_EOL;
}	else if (is_real($thing)) {
		echo "{$thing} is real. An alias of float" . PHP_EOL;
}	else if (is_int($thing)) {
		echo "{$thing} is an integer" . PHP_EOL;
} 	else if (is_integer($thing)) {
		echo "{$thing} is an alias of integer" . PHP_EOL;
}	else if (is_long($thing)) {
		echo "{$thing} is long, an alias of integer" . PHP_EOL;
}	else if (is_null($thing)) {
		echo "{$thing} is null" . PHP_EOL;
}	else if ( is_numeric($thing)) {
		echo "{$thing} is numeric (a type of float or integer)" . PHP_EOL;
}	else if (is_scalar($thing)) {
		echo "{$thing} is scalar (a type of float, integer, string or boolean)" . PHP_EOL;
} 	else if (is_string($thing)) {
		echo "{$thing} is a string" . PHP_EOL;
}
}