/**
* Write an algorithm to add 1 to any integer values in an arbitrary depth
* array using php.
*/
public function testQThree()
{
require_once __DIR__ . "/../src/data.php";
$clone = $data;
incrementIntegerInArray($data);
array_walk_recursive($clone, array($this, 'increment'));
$this->assertEquals($clone, $data);
}
/**
* Increment Integer values by 1
* @return void
*/
function incrementIntegerInArray(&$array)
{
if (!is_array($array)) {
throw new InvalidArgumentException('Invalid Array');
}
foreach ($array as $key => &$value) {
if (is_array($value)) {
incrementIntegerInArray($value);
} else {
if (is_integer($value)) {
$value++;
}
}
}
}