问在PHP DateTime中处理格式良好但无效的日期

EN

$date = '2015-02-30';
DateTime::createFromFormat('Y-m-d', $date);

$errors = DateTime::getLastErrors();
print_r($errors);

Array
(
    [warning_count] => 1
    [warnings] => Array
        (
            [10] => The parsed date was invalid
        )

    [error_count] => 0
    [errors] => Array
        (
        )

)

Array
(
    [warning_count] => 0
    [warnings] => Array
        (
        )

    [error_count] => 1
    [errors] => Array
        (
            [5] => Data missing
        )

)

$parts = explode('-', '2015-02-30'); 
if (checkdate($parts[1], $parts[2], $parts[0])) {
    // DateTime() stuff here
}