参考网址 https://www.kancloud.cn/xiaobaoxuetp/mywork/3069416
https://segmentfault.com/a/1190000020487996

PHP判断多个时间段是否存在跨天或重复叠加的场景

/*** PHP计算两个时间段是否有交集（边界重叠不算）** @param string $beginTime1 开始时间1* @param string $endTime1 结束时间1* @param string $beginTime2 开始时间2* @param string $endTime2 结束时间2* @return bool
*/
function is_time_cross($beginTime1 = '', $endTime1 = '', $beginTime2 = '', $endTime2 = '') {$status = $beginTime2 - $beginTime1;if ($status > 0) {$status2 = $beginTime2 - $endTime1;if ($status2 >= 0) {return false;} else {return true;}} else {$status2 = $endTime2 - $beginTime1;if ($status2 > 0) {return true;} else {return false;}}
}
$list = array(array('start_s'=>'10:00', 'end_s'=>'12:30'),array('start_s'=>'11:00', 'end_s'=>'12:30'),array('start_s'=>'14:00', 'end_s'=>'12:30'),array('start_s'=>'16:00', 'end_s'=>'12:30'),
);
$array = array();
foreach ($list as $k => $v) {// 时间转换成秒$start = explode(':', $v['start_s']);$end = explode(':', $v['end_s']);$start_time = $start[0]*3600+$start[1]*60;$end_time = $end[0]*3600+$end[1]*60;// 更新进新列表$array[] = array('start_s'=>$start_time, 'end_s'=>$end_time, );// 先判断有没有跨天if ($v['start_s'] > $v['end_s']) {$str = '存在跨天时间段：';$str .= '开始时间：'.$v['start_s'];$str .= ' 结束时间：'.$v['end_s'];die($str);}
}
// 判断天数重叠
foreach ($array as $k => $v) {foreach ($array as $kk => $vv) {if ($kk != $k) {// 存在跨天时间段if (is_time_cross($v['start_s'], $v['end_s'], $vv['start_s'], $vv['end_s'])) {$str = '存在重叠时间段：';$str .= '开始时间：'.date('H:i', $v['start_s']);$str .= ' 结束时间：'.date('H:i', $v['end_s']);$str .= ' 《 对应 》 开始时间：'.date('H:i', $vv['start_s']);$str .= ' 结束时间：'.date('H:i', $vv['end_s']);die($str);}}}
}