How to write a voice reminder that the time is up or there is an order?

I have been learning PHP for a while, and now I am very curious about how to implement two functions using a database. Expiration voice reminder and order reminder

Duke 2020-03-08 23:41:57 0  4  1476

Is it recommended to periodically change the RDS instance type for nightly scaling?

I have an app that is used heavily during the day and hardly used at night and on Sundays. RDSMySQL is quite expensive and I was wondering if I could scale down in the evening and scale up in the morning by changing the instance type from m5.4xlarge to m5.large and back. I don't want to turn it off ...

P粉779565855 2023-09-01 16:34:34 0  1  647

Preview of the teaching course on September 10, 2018: How to implement paging query data table and classification query for class encapsulation in PHP

Preview of the teaching content of the third online class of PHP Chinese website on September 10, 2018: 1. Teaching topic: How to use PHP to implement paging query data tables? Encapsulate classification queries into classes to achieve code reuse. For more detailed knowledge points, please pay atten...

藏色散人 2018-09-10 10:02:37 0  0  1289

Scheduled event to copy data from one table to another in MySQL returns empty results

Running on phpMyAdmin local server: I have two tables: user (with data) and user_t (empty). They have the same column names, order, and types (the user_t table has an extra column for timestamping the input). I want to create a scheduled event to check if the timestamp of each user log has a specifi...

P粉615886660 2023-09-09 09:47:01 0  1  649

The examples in this section report an error when typed.

When using use to import a namespace, a syntax error will be displayed, or it will be displayed that the class in the namespace has been defined. The PHP version is 7.2.10.

宝怡 2019-07-23 13:28:20 0  5  1347

php - How to add methods to an instance?

{Code...} If there is already an instance of class A, how can this instance also use the test method? What should I do if class A cannot be modified in php and python? If possible, use other packages when writing php before. , you will encounter that the call result returned is already an instance o...

某草草 2017-06-29 10:07:59 0  2  834

About PHP and JAVA 3DES encryption issues

I want to write an encryption class in Java using PHP, but I saw this writing method in Java and it gave me a headache. Totally illogical. I found a complete class and wanted to refer to it. After many experiments, I could not translate the encryption class I uploaded into PHP. Please help me. Thank...

给我你的怀抱 2017-06-15 09:21:44 0  1  928

Route not found: GET http://127.0.0.1:8000/entity name/

I have used make:crud to do CRUD for every entity in the database, but when I write http://127.0.0.1:8000/ to control entity addition, deletion... it shows me this message "No found route for "GEThttp://127.0.0.1:8000/demandededevis/" or "Case mismatch between loaded class name a...

P粉587780103 2024-02-25 20:14:34 0  1  530

Can an uninstantiated static object also call non-static methods in a class?

There is a very common code: System.out.println. This is a very common output statement, but after studying it for a while, I suddenly remembered to look at the source code. The following is the source code: {Code...} out is in the System class Defined, not instantiated yet, out is just a null varia...

为情所困 2017-05-17 10:07:52 0  5  682

Is it necessary to use PHP namespace?

1. Namespaces were not used in the thinkphp3.2 era, but the code did not look very complicated, and it did not cause much inconvenience. 2. I had seen a project done by other people using namespaces before, and it seemed that it actually used namespaces. Each class file also uses a lot of namespaces...

天蓬老师 2017-06-05 11:07:17 0  8  849

javascript object problem

js objects, what knowledge is often used in actual development? Array? time? Regular expression? For example, do you need to use these for slideshows or other special effects?

PHPz 2017-05-18 10:52:15 0  4  586

Using AWS SDK for PHP 3.x: Get the latest objects in an S3 bucket by last modification time.

I'm trying to get the latest object in a bucket by last modified time using AWS SDK for PHP 3.x. I've seen how to use the AWS CLI to achieve this functionality. Here it is: Using AWS CLI to get the last modified objects in an S3 bucket by last modification time. But I don't know how to use PHP SDK t...

P粉262113569 2023-07-28 11:50:32 0  1  538

How to set non-responsive data for component instances in Vue 3?

There was a similar question for Vue2 and it was recommended to use $options. But it doesn't seem to work for Vue3. First of all, the Vue3 documentation says that $options are read-only. So when I try to initialize the tooltip in the instance when the component is mounted, I get very strange behavio...

P粉973899567 2023-08-25 23:08:24 0  1  606

Embed targeting

I'm currently trying to position the embedded content between the image and the center of the screen. To accomplish this, I leveraged https://rss.app/ to embed the NBA portion of Google News into my website. If you need CSS files, please feel free to ask. I've been struggling with this for a while a...

P粉709644700 2023-09-15 00:14:35 0  1  657

How to set up paybob's WeChat jsapi payment directory

During this period of time, I found that some friends often inquired about this issue in practical applications. Today I sorted it out and communicated with everyone. The setting method is very simple. First, you must be a valid activated user of [paybob](https://www.paybob.cn). Go to the background...

嘟嘟 2019-08-06 20:54:21 0  0  1081

javascript - How to click the page button to open the local exe program on the computer?

For example: To realize this function in the internal system, click the page button to automatically open the application on the computer, such as Feiqiu. . . It's best to do this on chrome. . Has anyone done something similar? Thank you so much

typecho 2017-06-12 09:32:20 0  3  759

Convert date from string to input type date format

I have an HTML input type of "datetime-local" which I then store in a datetime field in a MSSQLServer database. When I load the edit page, I want to populate this HTML date field with the value from the database. When my console prints out the value of the date, it is: "Tuesday, May 1...

P粉587780103 2023-09-05 21:31:29 0  1  585

My graduation project is to build a language learning website. Do you have any guidance or suggestions from senior experts?

As a novice, how long can it take to learn and practice at the same time? Also, do you have any practical suggestions for learning? Regarding domain name registration, server selection: which type of server to choose, as well as performance options such as space size and transmission rate. In terms ...

九号 2019-03-10 16:48:55 0  3  1201

javascript - Too many UI style calculations cause the browser to load too slowly, especially in IE. Please ask for guidance from seniors.

Some time ago, I used EasyUI+jQuery to create a page. I didn’t feel there was any loading problem at first, but as the data increased, the loading time slowed down very obviously. Chrome usually takes more than 20 seconds, and IE is opening In the case of performance analysis, it actually takes more...

習慣沉默 2017-07-05 10:40:49 0  3  1000

How to avoid duplicate installation of React during package release?

I've been developing with React for a long time, but only recently tried publishing packages. A dependency of a package I'm developing would cause problems with React installations where there was a conflict between the package and the project it was installed into. (The package is react-query) How ...

P粉036800074 2023-09-08 08:41:16 0  1  604