本文实例讲述了PHP常用函数之格式化时间操作。分享给大家供大家参考，具体如下：
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/**
* 格式化时间
* @param $time 时间戳
* @return bool|string
*/
function formatTimeToNow($time){
//获取现在的时间戳
$nowtime = time();
if($time>$nowtime){
return '';
}else{
$tc = $nowtime-$time;
if( $tc >= 864000 ){
$str = date('Y-m-d H:i',$time);//如果大于10天,则直接显示日期
}else if( $tc >= 86400){
$str = floor($tc/86400) . "天前";//如果大于1天
}else if( $tc >= 3600) {
$str = floor($tc / 3600) . "小时前";//如果大于1小时
}else if( $tc >= 60) {
$str = floor($tc / 60) . "分钟前";//如果大于1分钟
}else{
$str = "刚刚";
}
return $str;
}
}
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/**
* 将中文的日期格式化为正常的日期
* @param $date
* @return mixed
*/
function formatCnDateToDate($date){
//把年月替换为-，日替换为空
$date = str_replace('年','-',$date);
$date = str_replace('月','-',$date);
$date = str_replace('日','',$date);
//避免提交的格式不统一，例如2018-3-2等，标准化
return date('Y-m-d',strtotime($date));
}
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/**
* 计算自然周期的开始时间戳和结束时间戳（周一到周日，月初到月末）
* @param int $time_type 1表示自然天，2表示自然周，3表示自然月
* @param int $prev_num 距离现在的值（前一周传-1，前两周传-2...）
* @return array|bool
*/
function naturalFormatTime($time_type=1,$prev_num=0){
$today_start_time = strtotime(date('Y-m-d 00:00:00',time()));//今天0点的时间戳
if($time_type == 1){
if($prev_num == 0){
return array('start_time'=>$today_start_time,'end_time'=>time(),'show_date'=>date('Y年m月d日',time()));
}else if($prev_num < 0){
$start_time = $today_start_time - 86400*abs($prev_num);
$end_time = $start_time + 86399;
$show_date = date('Y年m月d日',$start_time);
return array('start_time'=>$start_time,'end_time'=>$end_time,'show_date'=>$show_date);
}else{
return false;
}
}else if($time_type == 2){
$today_week = date('w',$today_start_time);
if($today_week == 0){
$today_week_start_time = $today_start_time - 86400*6;
}else{
$today_week_start_time = $today_start_time - 86400*($today_week-1);
}
if($prev_num == 0){
$show_date = date('Y年m月d日',$today_week_start_time);
$show_date .= '至' . date('d日',time());
return array('start_time'=>$today_week_start_time,'end_time'=>time(),'show_date'=>$show_date);
}else if($prev_num < 0){
$start_time = $today_week_start_time - 86400*7 * abs($prev_num);
$end_time = $start_time + (86400*7-1);
$show_date = date('Y年m月d日',$start_time);
$show_date .= '至' . date('d日',$end_time);
return array('start_time'=>$start_time,'end_time'=>$end_time,'show_date'=>$show_date);
}else{
return false;
}
}else if($time_type == 3){
if($prev_num == 0){
$today_day = ltrim(date('d',$today_start_time),0);
$today_month_start_time = $today_start_time - 86400*($today_day-1);
$show_date = date('Y年m月d日',$today_month_start_time);
$show_date .= '至' . date('d日',time());
return array('start_time'=>$today_month_start_time,'end_time'=>time(),'show_date'=>$show_date);
}else if($prev_num < 0){
$start_time = strtotime(date('Y-m-01', strtotime("$prev_num month")));
$days = date('t',$start_time);
$end_time = $start_time + 86400 * $days -1;
$show_date = date('Y年m月d日',$start_time);
$show_date .= '至' . date('d日',$end_time);
return array('start_time'=>$start_time,'end_time'=>$end_time,'show_date'=>$show_date);
}else{
return false;
}
}else{
return false;
}
}
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/**
* 计算近一周或近一个月的开始时间戳和结束时间戳
* @param $type 1表示今天，2表示近一周，3表示近一个月
* @return array
*/
function nearFormatTime($type){
$start_time = strtotime(date('Y-m-d 00:00:00'));//今天0点的时间戳
$end_time = $start_time + 86399;//今天23:59的时间戳
$res = array('start_time'=>0,'end_time'=>$end_time);
if($type == 1){
//今天
$res['start_time'] = $start_time;
}else if($type == 2){
//近一周
$res['start_time'] = $start_time - 86400*6;//包括今天,共七天
}else if($type == 3){
//近一个月
$res['start_time'] = $start_time - 86400*30;//包括今天,共31天
}
return $res;
}
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希望本文所述对大家PHP程序设计有所帮助。
原文链接：https://www.cnblogs.com/gyfluck/p/8521154.html