/**
* Gets a "safe string" from a `\DateTime` or an array
*
* @param mixed $source
* @return string
*/
public static function getSafeString($source)
{
$str = $source;
if (!is_string($source)) {
if ($source instanceof \DateTime) {
$str = Kernel::applyConfig('date_to_string', array($source));
} elseif (is_array($source)) {
$str = '';
foreach ($source as $var => $val) {
$str .= $var . ': ' . self::getSafeString($val) . PHP_EOL;
}
}
}
return $str;
}