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php 获取指定月份的开始结束时间戳。

/**
*
* 获取指定年月的开始和结束时间戳
* @param int $year 年份
* @param int $month 月份
* @return array(开始时间,结束时间)
*/
function getMonthBeginAndEnd($year = 0, $month = 0) {$year = $year ? $year : date('Y');$month = $month ? $month : date('m');$d = date('t', strtotime($year . '-' . $month));return ['begin' => strtotime($year . '-' . $month), 'end' => mktime(23, 59, 59, $month, $d, $year)];}/**
* 获取指定时间戳所在的月份的开始时间戳和结束时间戳
*
* @param int $timestamp
* @return array(开始时间,结束时间)
*/
function getMonthBeginAndEnd($timestamp = 0) {$timestamp = $timestamp ? $timestamp : time();$year = date('Y', $timestamp);$month = date('m', $timestamp);$d = date('t', strtotime($year . '-' . $month));return ['begin' => strtotime($year . '-' . $month), 'end' => mktime(23, 59, 59, $month, $d, $year)];
}