How to implement date after several days of a given date

How to implement the date after several days of the given date, read how to implement the date after several days of the given date, these days suddenly many people ask this question, is how to implement the DateAdd function in VB in PHP! This is a question. Originally this question is tofu to apply for a Huawei exam, but at that time was using C ++ "> <LINKhref =" http://www.php these days suddenly many people asked such a question, is how to implement the DateAdd function in VB in PHP! This is a question.
This was originally an exam question when tofu went to Huawei to apply for a job, but it was implemented in C ++. Without thinking of such a big company
However, using this pediatrics to take the exam :), then I did not go, the two days should be http://www.chinaspx.com of netizens-"luck, with PHP again
Write this function.
This function is very simple, that is, adding a day to the specified time to get the new date. if you want to extend it, it is very easy.
Next, let's take a look at this function. First, let's talk about a function in advance to determine whether it is a leap year function.
Function CheckRun ($ year ){
If ($ year % 4 = 0 & ($ year % 100! = 0 | $ year % 400 = 0 ))
Return true;
Else
Return false;
}
We need to use this function in the following program.
Function DateAdd ($ date ){
$ Parts = explode ('', $ date );
$ Date = $ parts [0];
$ Time = $ parts [1];
$ Ymd = explode ('-', $ date );
$ Hms = explode (':', $ time );
$ Year = $ ymd [0];
$ Month = $ ymd [1];
$ Day = $ ymd [2];
$ Hour = $ hms [0];
$ Minute = $ hms [1];
$ Second = $ hms [2];
$ Day = $ day + 1; // you can add the date first.
If ($ month = '1' | $ month = '3' | $ month = '5' | $ month = '7' | $ month = '8' | $ month = '10' | $ month = '12 ')
If ($ day = 32)
{
$ Day = '1 ';
$ Month ++;
}
If ($ month = '4' | $ month = '6' | $ month = '9' | $ month = '11 ')
If ($ day = 31)
{
$ Day = '1 ';
$ Month ++;
}
If ($ month = '2 ')
If (CheckRun ($ year ))
{
// 29 days for January 1, February
If ($ day = 30)
{
$ Day = 1;
$ Month ++;
}
}
Else
{
// Not a leap year
If ($ day = 29)
{
$ Day = 1;
$ Month ++;
}
}
If ($ month = 13)
{
$ Month = 1;
$ Year ++;
}
Return $ year. "-". $ month. "-". $ day;
}
Okay. let's test it.
Echo DateAdd ("11:11:11 ");
Echo DateAdd ("11:11:11 ");
If you want to test the function for several days, you only need to add a loop. I believe everyone is a senior. This function is very simple :)