Determine if the given year is a leap year

# IntlGregorianCalendar::isLeapYear

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

IntlGregorianCalendar::isLeapYear — Determine if the given year is a leap year

### 说明

public function IntlGregorianCalendar::isLeapYear(int `$year`): bool

警告

本函数还未编写文档，仅有参数列表。

### 参数

`year`

### 返回值

Returns `true` for leap years, `false` otherwise and on failure.

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