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php gets some time to implement method practice
- 不言Original
- 2018-04-13 14:03:031380browse
The content shared with you in this article is about the implementation method and practice of obtaining some time in PHP. It has a certain reference value. Friends in need can refer to it.
I have encountered it during development these days. I have sorted out some time issues and shared them with everyone. You can take a look and use them if necessary.
1. Get the first and last day of last month.
echo date('Y-m-01', strtotime('-1 month')); echo "<br/>"; echo date('Y-m-t', strtotime('-1 month')); echo "<br/>";
There are some problems with the above method, please make the following modifications:
Previous The first day of the month:
echo date('Y-m-d', strtotime(date('Y-m-01') . ' -1 month')); // 计算出本月第一天再减一个月
The last day of the previous month:
echo date('Y-m-d', strtotime(date('Y-m-01') . ' -1 day')); // 计算出本月第一天再减一天
2. Get the first and last day of the month.
$BeginDate=date('Y-m-01', strtotime(date("Y-m-d")));
echo $BeginDate; echo "<br/>";
echo date('Y-m-d', strtotime("$BeginDate +1 month -1 day"));
echo "<br/>";3. Get the year, month, day and number of days of the current day.
echo " 本月共有:".date("t")."天";
echo " 当前年份".date('Y');
echo " 当前月份".date('m');
echo " 当前几号".date('d');
echo "<br/>";4. Use functions and arrays to get the first and last days of the month and compare Practical
function getthemonth($date){
$firstday = date('Y-m-01', strtotime($date));
$lastday = date('Y-m-d', strtotime("$firstday +1 month -1 day"));
return array($firstday,$lastday);
}
$today = date("Y-m-d");
$day=getthemonth($today);
echo "当月的第一天: ".$day[0]." 当月的最后一天: ".$day[1];
echo "<br/>";Get the date of this month:
function getMonth($date){
$firstday = date("Y-m-01",strtotime($date));
$lastday = date("Y-m-d",strtotime("$firstday +1 month -1 day"));
return array($firstday,$lastday);
} $firstday is the first day of the month, if$date If is 2018-2, $firstday will be 2018-02-01, and then add one month based on $firstday to get 2018-03-01, minus one day is 2018-02-28, it is so convenient to use date() and strtotime().
Get the date of the previous month:
function getlastMonthDays($date){
$timestamp=strtotime($date);
$firstday=date('Y-m-01',strtotime(date('Y',$timestamp).'-'.(date('m',$timestamp)-1).'-01'));
$lastday=date('Y-m-d',strtotime("$firstday +1 month -1 day")); return array($firstday,$lastday);
} The date of the previous month needs to get a timestamp first, and then -1 on the month OK, the super smart date() will convert things like 2018-0-1 into 2017-12-01, so cool .
Get the date of the next month:
function getNextMonthDays($date){
$timestamp=strtotime($date);
$arr=getdate($timestamp);
if($arr['mon'] == 12){
$year=$arr['year'] +1;
$month=$arr['mon'] -11;
$firstday=$year.'-0'.$month.'-01';
$lastday=date('Y-m-d',strtotime("$firstday +1 month -1 day"));
}else{
$firstday=date('Y-m-01',strtotime(date('Y',$timestamp).'-'.(date('m',$timestamp)+1).'-01'));
$lastday=date('Y-m-d',strtotime("$firstday +1 month -1 day"));
}
return array($firstday,$lastday);
} The code for the date of the next month looks a little longer, because date() cannot be converted to something like 2018-13-01 This kind of thing will go back directly to 1970, so we need to deal with the issue of 12 months before, except 12 Just enter month 1 and it will be OK.
Generally speaking, the date function is too powerful.
I have sorted out some of the time problems I encountered during development these days and shared them with everyone. You can take a look and use them if necessary.
1. Get the first and last day of last month.
echo date('Y-m-01', strtotime('-1 month')); echo "<br/>"; echo date('Y-m-t', strtotime('-1 month')); echo "<br/>";
There are some problems with the above method, please make the following modifications:
Previous The first day of the month:
echo date('Y-m-d', strtotime(date('Y-m-01') . ' -1 month'));// 计算出本月第一天再减一个月
The last day of the previous month:
echo date('Y-m-d', strtotime(date('Y-m-01') . ' -1 day')); // 计算出本月第一天再减一天
2. Get the first and last day of the month.
$BeginDate=date('Y-m-01', strtotime(date("Y-m-d")));
echo $BeginDate; echo "<br/>";
echo date('Y-m-d', strtotime("$BeginDate +1 month -1 day"));
echo "<br/>";3. Get the year, month, day and number of days of the current day.
echo " 本月共有:".date("t")."天"; echo " 当前年份".date('Y');
echo " 当前月份".date('m');
echo " 当前几号".date('d');
echo "<br/>";4. Use functions and arrays to get the first and last days of the month and compare Practical
function getthemonth($date){
$firstday = date('Y-m-01', strtotime($date));
$lastday = date('Y-m-d', strtotime("$firstday +1 month -1 day"));
return array($firstday,$lastday);
}
$today = date("Y-m-d");
$day=getthemonth($today);
echo "当月的第一天: ".$day[0]." 当月的最后一天: ".$day[1];
echo "<br/>";Get the date of this month:
function getMonth($date){
$firstday = date("Y-m-01",strtotime($date));
$lastday = date("Y-m-d",strtotime("$firstday +1 month -1 day"));
return array($firstday,$lastday);
} $firstday is the first day of the month, if$date If is 2018-2, $firstday will be 2018-02-01, and then add one month based on $firstday to get 2018-03-01, minus one day is 2018-02-28, it is so convenient to use date() and strtotime().
Get the date of the previous month:
function getlastMonthDays($date){
$timestamp=strtotime($date);
$firstday=date('Y-m-01',strtotime(date('Y',$timestamp).'-'.(date('m',$timestamp)-1).'-01'));
$lastday=date('Y-m-d',strtotime("$firstday +1 month -1 day"));
return array($firstday,$lastday);
} The date of the previous month needs to get a timestamp first, and then -1 on the month OK, the super smart date() will convert things like 2018-0-1 into 2017-12-01, so cool .
Get the date of the next month:
function getNextMonthDays($date){
$timestamp=strtotime($date);
$arr=getdate($timestamp);
if($arr['mon'] == 12){
$year=$arr['year'] +1;
$month=$arr['mon'] -11;
$firstday=$year.'-0'.$month.'-01';
$lastday=date('Y-m-d',strtotime("$firstday +1 month -1 day"));
}else{
$firstday=date('Y-m-01',strtotime(date('Y',$timestamp).'-'.(date('m',$timestamp)+1).'-01'));
$lastday=date('Y-m-d',strtotime("$firstday +1 month -1 day"));
}
return array($firstday,$lastday);
} The code for the date of the next month looks a little longer, because date() cannot be converted to something like 2018-13-01 This kind of thing will go back directly to 1970, so we need to deal with the issue of 12 months before, except 12 Just enter month 1 and it will be OK.
Generally speaking, the date function is too powerful.
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