Comparative analysis of PHP and Java date and time function examples

date():Format a local time or date, the current time is May 13, 2016 15:19:49

Use the function date(), the output is the current month The day of the week, parameter: String type d

For example: echo date("d"); Output 13

Use the function date() to output the current day of the week, Parameters: String type D or N

For example:

echo date("D"); 输出 Fri

echo date("N"); 输出 5

echo date("l"); 输出 Friday

Use the function date() to output the month in the current month. Parameter: String type n

echo date("n"); Output 5

Use function date() to determine whether the current year is a leap year. Parameter: String type L

echo date( "L"); Output 1

strtotime(): Convert the string type date format into a timestamp

Use the function strtotime() before printing Date of the day, parameter: String type "-1 day"

echo date("Y-m-d H:i:s",strtotime("-1day"));Output 2016-05- 12 15:27:33

Use function strtotime() to print tomorrow’s date, parameter: String type "1 day"

echo date("Y-m-d H:i:s" ,strtotime(" 1 day"));Output 2016-05-14 15:28:29

Use function strtotime() to print next week's date, parameter: String type "1 week"

echo date("Y-m-d H:i:s",strtotime(" 1 week"));;Output 2016-05-20 15:29:35

Use the function strtotime() to print the date of the next month. Parameters: String type "1 month"

echo date("Y-m-d H:i:s",strtotime(" 1 month")); Output: 2016-06-13 15:37:42

Use function strtotime() to print next Monday's date, parameter: String type "last Mondy"

echo date("Y-m-d H:i:s",strtotime("next Monday")); Output: 2016-05-16 00:00:00

Use the function strtotime() to print next week Date after zero two days, two hours and two seconds, parameters: String type combination

echo date("Y-m-d H:i:s",strtotime(" 1 week 2 day 2 hour")); Output2016-05-22 17:34:34

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java version:

java.util.Date class

Get the Date object, new comes out

Call the getTime() method of the Date object to get the timestamp (millisecond value)

java.text.SimpleDateFormat class

Get the SimpleDateFormat object, new comes out, construction parameters: "yyyy-MM-dd hh:mm:ss"

Call The format() method of the SimpleDateFormat object obtains the date of String type. Parameter: Date object

For example:

  Date date=new Date();
          SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
          System.out.println(format.format(date));

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