/**
* 返回一年中的12个月份
*
* Date::months();
* // array(1 => 1, 2 => 2, 3 => 3, ..., 12 => 12)
*
* 可以使用Date::MONTHS_LONG来使其返回带月份的格式
*
* Date::months(Date::MONTHS_LONG);
* // array(1 => 'January', 2 => 'February', ..., 12 => 'December')
*
* Date::MONTHS_SHORT返回月份的短格式
*
* Date::months(Date::MONTHS_SHORT);
* // array(1 => 'Jan', 2 => 'Feb', ..., 12 => 'Dec')
*
* @param string $format 月份格式
* @return array
*/
public static function months($format = null)
{
$months = [];
if ($format === Date::MONTHS_LONG || $format === Date::MONTHS_SHORT) {
for ($i = 1; $i <= 12; ++$i) {
$months[$i] = strftime($format, mktime(0, 0, 0, $i, 1));
}
} else {
$array = Arr::range(1, 12);
foreach ($array as $i) {
$months[$i] = $i;
}
}
return $months;
}
/**
* 校验[Arr::range]方法
*
* @dataProvider dataRange
* @param mixed $step
* @param mixed $max
* @param mixed $expect
*/
public function testRange($step, $max, $expect)
{
$this->assertEquals($expect, Arr::range($step, $max));
}