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javascript - One about date expansion: get the date after adding numbers to the date, year, month, day, etc.; this code is not very clear? ? ?

Date.prototype.dateAdd = function (interval, number) { {code...} } The above extension code is not very clear. Can someone explain it to me? ? ? meaning of each line

伊謝爾倫 2017-05-19 10:12:32 0  1  502

javascript - Why does my router-link in vue not work?

{code...} {code...} This is the content of App.vue. In fact, the page display has been mounted as a tag, but clicking has no effect, and there is no effect of clicking to change the component {code. ..} This is the code for one of the routers. The other two are basically the same. How can I get the ...

漂亮男人 2017-05-16 13:38:06 0  2  798

How to query dates between two dates in the same column in MySQL

I have a table called holiday_master with the following columns |Id|Title|Date||:---|:-------|:-------------- ----------||1|Christmas|12-25-2021-12-30-2021||2|Celebration Day|11-30-2021-12-02-2021|Assume I have The current date is 2021-12-27, it appears in the first line, I want to get that record, ...

P粉083785014 2023-09-05 21:17:10 0  1  711

How to check if a date is in the future, for separate date and time columns?

I have two separate columns for storing dates: one that stores the date itself in YYYY-mm-dd format, and another that stores the time in the time(7) data type, e.g. 11:15:10.0000000. How can I check those future rows? I can get the query conditions of the date part, for example: MyModel::where('date...

P粉021854777 2023-07-31 19:18:47 0  1  672

Sort by date, use IN to get latest and previous entry for multiple entries

My goal: I have a list of stock_ids and want to get the last bids (sorted by date) one for each stock_id. For the picture this means I want: stock_id bid 3663.91953146.4428129.02798 One problem is that we have stocks like Gazprom that are suspended, so one of the last bids could be for example 2021-...

P粉653045807 2023-09-03 23:52:49 0  2  766

Title rewritten as: PHP fails to process when there is no data returned for the date

I cannot operate both databases. If there is data equal to date, I print the average in one column. If there is no data equal to the date, I get the following error. I need to type an "else" but I can't get it to run when I type it. My code is as follows; <?php$Sor=$conn->query("...

P粉038856725 2023-09-10 11:49:01 0  1  667

Unforeseen results occur when calculating time difference in seconds in PHP by converting two dates to Unix timestamps.

According to the title, I'm trying to find the difference in seconds and then convert those seconds to days and hours. After reading and following similar questions, I built a function that adds the hour, day, week, month, or year I want to today's datetime, and I get the correct results from this p...

P粉237029457 2023-09-03 09:22:01 0  1  747

MySQL issues when summarizing sales data from two separate tables

Thank you very much in advance for your support. I'm learning SQL and generating some data to play with, but I'm stuck on one simple thing. The table in the screenshot below shows part of my sales20 table, which shows the sales achieved by each employee in 2020 along with region and date information...

P粉391677921 2024-04-04 14:22:13 0  2  704

The title is rewritten as: The Chinese translation of converting string to date is MYSQL function STR_TO_DATE

I have this date in this: STR_TO_DATE('28-AUG-60','%d-%M-%y') When I insert into the table, I get: 2060-08-2800:00:00 What I am expecting is: 1960-08-2800:00:00 I know in MSSQL there is a RR format which gives you 2 or 4 digit year, 00-49 years are the 20th century, how do I do that in MySQL What to...

P粉270891688 2023-09-02 11:09:45 0  1  606

Laravel Modal does not return data

I don't know why I'm not getting the value from the modal in my Laravel controller. Please check it for me. However, I use the same code for other modes and controllers. It's working and returning the value from the property without any issues. I'm using Laravel8 and php8.1; below is my code. app\Ht...

P粉174151913 2024-03-29 10:31:31 0  1  609

Can I use the automatic generation module of thinkphp5 in Windows 7 system? How to configure and use

明民 2017-10-10 17:04:14 0  2  1409

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

劉袁銘 2017-10-10 19:25:59 0  4  2965

mcrypt_get_key_size()

To use mcrypt_get_key_size() in php study, how to enable mcrypt_

劉袁銘 2017-10-10 19:47:34 0  1  1192

Detecting login status and preventing repeated login status in TP5 - My page is wrong

冥冥之中天注定 2017-10-10 22:49:15 0  0  1212

Issues with resending WeChat public account template messages?

For example: I am using PHP to develop WeChat public accounts. If I send a template message, the WeChat client may receive 1-3 messages. I checked Baidu and said that the WeChat server will resend in 5 seconds. How to solve this problem?

飛揚 2017-10-11 08:00:11 0  0  1152

How to install php7

我無限黑暗里的小太陽▼ 2017-10-11 09:11:44 0  1  1151

Solve (no language limit)

A census taker asked a woman, "How many children do you have and how old are they?" The woman replied, "I have three children. Their ages multiplied is 36. The sum of their ages is equal to the house number of the segregated room." Census The enumerator immediately went to the ne...

路過 2017-10-11 10:20:08 0  1  1374

There is no WWW file in the phpStudy directory. Enter localhost in the website and the hello world solution will come out directly! I created the WWW folder in the root directory and then created an abc.php. localhost/abc.php still didn't come out and an error was reported. not found

<?phpphpinfo();?>

M..moli瞎 2017-10-11 11:45:27 0  7  5224

Find an authoritative and practical development tutorial or article on WeChat scan code authorization to log in to the website

Find an authoritative and practical development tutorial or article on WeChat scan code authorization to log in to the website

極世 2017-10-11 12:33:15 0  1  1697

How to uninstall phpstudy.

whlyx 2017-10-11 15:53:03 0  2  1780