目录
二、PHP获取今日、昨日、上周、本周、上月、本月的起始时间戳
六、通过某个日期段内的周几获取对应的日期 开始日期 结束日期
// 获取时间戳$date = time(); // 获取当前时间戳$date = mktime(0, 0, 0, 10, 10, 2020); // 获取指定时间的时间戳 2020年10月10日0时0分0秒// 日期转换为时间戳$date = "2019-08-08 08:08:08";$timestamp = strtotime($date);// 将时间戳转换成日期$date = time();echo date('Y-m-d', $date); // 输出格式化的日期（年-月-日）// 将时间戳转换为时间格式$date = time();echo date('H:i:s', $date); // 输出格式化的时间（小时:分钟:秒）// 日期格式化$date = time();echo date('Y-m-d H:i:s', $date); // 输出格式化的日期时间（年-月-日 小时:分钟:秒）// 将时间戳转换为星期$date = time();echo date('l', $date); // 输出星期几的完整文本形式（例如：Sunday）// 将时间戳转换为月份$date = time();echo date('F', $date); // 输出月份的完整文本形式（例如：January）//今日开始时间戳和结束时间戳$beginToday=mktime(0,0,0,date('m'),date('d'),date('Y'));$endToday=mktime(0,0,0,date('m'),date('d')+1,date('Y'))-1;//昨日起始时间戳和结束时间戳$beginYesterday=mktime(0,0,0,date('m'),date('d')-1,date('Y'));$endYesterday=mktime(0,0,0,date('m'),date('d'),date('Y'))-1;//本周起始时间戳和结束时间戳$startTime = mktime(0,0,0,date('m'),date('d')-date('w')+1,date('y'));$endTime = mktime(23,59,59,date('m'),date('d')-date('w')+7,date('y'));//上周起始时间戳和结束时间戳$beginLastweek=mktime(0,0,0,date('m'),date('d')-date('w')+1-7,date('Y'));$endLastweek=mktime(23,59,59,date('m'),date('d')-date('w')+7-7,date('Y'));//本月起始时间戳和结束时间戳$beginThismonth=mktime(0,0,0,date('m'),1,date('Y'));$endThismonth=mktime(23,59,59,date('m'),date('t'),date('Y'));//上月起始时间戳和结束时间戳$begin_time = date('Y-m-01 00:00:00',strtotime('-1 month'));$end_time = date("Y-m-d 23:59:59", strtotime(-date('d').'day'));//获取当前季度$season = ceil((date('m'))/3);//本季度起始时间戳和结束时间戳$starTime=mktime(0, 0, 0,$season*3-3+1,1,date('Y'));$endTime = mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'));//当年起始时间戳和结束时间戳$startTime = strtotime(date("Y",time())."-1"."-1"); $overTime = strtotime(date("Y",time())."-12"."-31"); function getDay(){ $timestr = time(); //当前时间戳 $now_day = date('w',$timestr); //当前是周几 //获取周一 $monday_str = $timestr - ($now_day-1)*60*60*24; $monday = date('Y-m-d', $monday_str); //获取周日 $sunday_str = $timestr + (7-$now_day)*60*60*24; $sunday = date('Y-m-d', $sunday_str); for($i=0;$i<7;$i++) { $arr[$i]['start']=strtotime(date('Y-m-d',strtotime($monday.'+'.$i.'day'))); $arr[$i]['end']=strtotime(date('Y-m-d',strtotime($monday.'+'.$i.'day')). " 24:00:00"); } return $arr; }1、根据指定时间获取所在周的起始时间和结束时间
function get_weekinfo_by_time($date) { $idx = strftime("%u", strtotime($date)); $mon_idx = $idx - 1; $sun_idx = $idx - 7; return array( 'week_start_day' => strftime('%Y-%m-%d', strtotime($date) - $mon_idx * 86400), 'week_end_day' => strftime('%Y-%m-%d', strtotime($date) - $sun_idx * 86400), );}2、通过时间戳 获取某周的开始时间和结束时间
function getWeekMyActionAndEnd($time = '', $first = 1){ //当前日期 if (!$time) $time = time(); $sdefaultDate = date("Y-m-d", $time); //$first =1 表示每周星期一为开始日期 0表示每周日为开始日期 //获取当前周的第几天 周日是 0 周一到周六是 1 - 6 $w = date('w', strtotime($sdefaultDate)); //获取本周开始日期，如果$w是0，则表示周日，减去 6 天 $week_start = date('Y-m-d', strtotime("$sdefaultDate -" . ($w ? $w - $first : 6) . ' days')); //本周结束日期 $week_end = date('Y-m-d', strtotime("$week_start +6 days")); return array("week_start" => $week_start, "week_end" => $week_end);}function DateToWeek($date){ //强制转换日期格式 $date_str=date('Y-m-d',strtotime($date)); //封装成数组 $arr=explode("-", $date_str); //参数赋值 //年 $year=$arr[0]; //月，输出2位整型，不够2位右对齐 $month=sprintf('%02d',$arr[1]); //日，输出2位整型，不够2位右对齐 $day=sprintf('%02d',$arr[2]); //时分秒默认赋值为0； $hour = $minute = $second = 0; //转换成时间戳 $strap = mktime($hour,$minute,$second,$month,$day,$year); //获取数字型星期几 $number_wk=date("w",$strap); //自定义星期数组 $weekArr=array("周日","周一","周二","周三","周四","周五","周六"); //获取数字对应的星期 return $weekArr[$number_wk];}function getDateByWeek($data){$start_date = strtotime($data['start_date']);$end_date = strtotime($data['end_date']);$days = ($end_date - $start_date) / 86400;$weekArr = array('周日','周一','周二','周三','周四','周五','周六');$newDate = array();// 组建数组格式 $dataWeek['日期'] => 星期for ($i=0; $i < $days; $i++) { $num_week = date('w',$start_date+($i*86400));$dateWeek[date('Y-m-d',$start_date+($i*86400))] = $weekArr[$num_week];}// 查找两个数组的交集，即获取提交的星期对应的日期$newDate=array_intersect($dateWeek,$data['items']);// 获取数组中的键值(日期)，并组成一个新数组$date = array_keys($newDate);return $date;}function get_weeks($sdate, $edate) { $range_arr = array(); // 检查日期有效性 check_date(array($sdate, $edate)); // 计算各个周的起始时间 do { $weekinfo = get_weekinfo_by_date($sdate); $end_day = $weekinfo['week_end_day']; $start = substr_date($weekinfo['week_start_day']); $end = substr_date($weekinfo['week_end_day']); $range = "{$start} ~ {$end}"; $range_arr[] = $range; $sdate = date('Y-m-d', strtotime($sdate)+7*86400); }while($end_day < $edate); return $range_arr;}function check_date($date_arr) { $invalid_date_arr = array(); foreach ($date_arr as $row) { $timestamp = strtotime($row); $standard = date('Y-m-d', $timestamp); if ($standard != $row) $invalid_date_arr[] = $row; } if ( ! empty($invalid_date_arr)) { die("invalid date -> ".print_r($invalid_date_arr, TRUE)); }} function substr_date($date) { if ( ! $date) return FALSE; return date('m-d', strtotime($date)); } function get_weekinfo_by_date($date) { $idx = strftime("%u", strtotime($date)); $mon_idx = $idx - 1; $sun_idx = $idx - 7; return array( 'week_start_day' => strftime('%Y-%m-%d', strtotime($date) - $mon_idx * 86400), 'week_end_day' => strftime('%Y-%m-%d', strtotime($date) - $sun_idx * 86400), ); }function get_months($sdate, $edate) { $range_arr = array(); do { $monthinfo = get_monthinfo_by_date($sdate); $end_day = $monthinfo['month_end_day']; $start = substr_date($monthinfo['month_start_day']); $end = substr_date($monthinfo['month_end_day']); $range = "{$start} ~ {$end}"; $range_arr[] = $range; $sdate = date('Y-m-d', strtotime($sdate.'+1 month')); }while($end_day < $edate); return $range_arr; } function substr_date($date) { if ( ! $date) return FALSE; return date('m-d', strtotime($date)); } function get_monthinfo_by_date($date){ $ret = array(); $timestamp = strtotime($date); $mdays = date('t', $timestamp); return array( 'month_start_day' => date('Y-m-1', $timestamp), 'month_end_day' => date('Y-m-'.$mdays, $timestamp) ); }function get_monthinfo_by_date($date){ $ret = array(); $timestamp = strtotime($date); $mdays = date('t', $timestamp); return array( 'month_start_day' => date('Y-m-1', $timestamp), 'month_end_day' => date('Y-m-'.$mdays, $timestamp) );}function getMonthByDate($year){// $year = '2019';$yeararr = [];$month = [];for ($i=1; $i <=12 ; $i++) { $yeararr[$i] = $year.'-'.$i;}foreach ($yeararr as $key => $value) {$timestamp = strtotime($value );$start_time = date( 'Y-m-1 00:00:00', $timestamp );$mdays = date( 't', $timestamp );$end_time = date( 'Y-m-' . $mdays . ' 23:59:59', $timestamp );$month[$key]['start_time'] = strtotime($start_time);$month[$key]['end_time'] = strtotime($end_time);}return $month;}function get_month_begin_end($date){ // $date = '2018-11'; $data['begin_time'] = strtotime($date); //指定月份月初时间戳 $data['end_time'] = mktime(23,59,59,date('m',strtotime($date))+1,00); //指定月份月末时间戳 return $data;}来源地址：https://blog.csdn.net/qq_25285531/article/details/130480228
