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php - The form is submitted to action. The user input is illegal and a prompt is required. How to deal with it?

{Code...} Verify.php determines whether the input is illegal. If it is illegal, how can the user be prompted? ps: It's OK if you use jquery to bind the button. But I want to know if the submission method like form/action can output the judgment result to the front desk?

漂亮男人 2017-05-24 11:34:13

When posting questions, the verification code is often wrong, and then it prompts that it is illegal.

When posting questions, the verification code is often wrong (when the first input is incorrect), and the prompt is illegal, especially after the prompt is illegal, no matter how I operate, I cannot publish the post.

极世 2018-04-27 17:30:12

Why is the printed data an illegal operation?

代码：login: function(){ wx.login({ success:function(res){ console.log(res.code) &

桃月初九 2020-05-04 10:50:37

Ask about a filtering rule for nginx

Some illegal characters need to be filtered out in the server's URL: For example | ; $ @ ' " < > ( ) document LF Because all locations are required, it is written below the server: {code...} I am a regular novice, Asking for expert guidance...

大家讲道理 2017-05-16 17:21:23

python - How to define nested variables in flask jinjia2

In jinjia, as shown below, I defined a variable number {code...} file_dict is a dict type variable. I want to reference the key in file_dict to find out the value of the key {{number}} in the file_dict. {Code...} It seems illegal to define it like the above, no...

迷茫 2017-06-22 11:51:50

javascript - An algorithm question in front-end interview

Today, I have an interview in the afternoon. During the second interview, there was an algorithm question. I know nothing about algorithms. Please ask someone to help me. The question is to implement a function that calculates addition, subtraction, multiplication and division of parentheses. The in...

给我你的怀抱 2017-05-19 10:27:19

javascript - How can I prevent input of type=number from adding plus signs, minus signs and multiple decimal points?

Thank you in advance. I wrote an Input with type = number. Due to business needs, only numbers can be entered in this Input, and the plus and minus signs cannot be entered. I originally wanted to judge the value in the input and manually delete the plus and minus signs and redundant dots, but I foun...

给我你的怀抱 2017-05-16 13:37:46

How to increase the number entered?

I'm trying to implement the step attribute when using the HTMLinput element. This way I can add 100 to the current value by clicking on the up/down arrows in the input field. However, step determines legal values, so it does not work with simple increments. For example, if I enter 123, it will incre...

P粉605233764 2024-04-01 19:13:50

javascript - DingTalk's excel and word file previews are directly using Microsoft's office web app. Isn't it illegal?

Microsoft’s office web app should not be open source.

欧阳克 2017-07-05 10:49:21

@庄哥:: Suggestions for the Q&A section of the PHP community

Written before: When I asked for help with a problem just now, I needed to post a long help post, but when I clicked Publish, I was prompted to detect illegal words. There was no prompt here as to which words they were, so I couldn't modify them. The suggestions for this are: Mark illegal words with...

极世 2018-07-06 14:10:01

Can Vue 2 (or any other front-end framework) be sustainably (safely) used after end-of-life (EOL)?

When using Vue as a standalone SPA, there will certainly not be any major "vulnerabilities" discovered after the December 2023 EOL. I'm using Vue as a standalone frontend SPA, with an ExpressRESTAPI backend, and almost all the "risk" is in the backend, so I guess if I have my fro...

P粉973899567 2024-03-28 17:35:43

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't wo...

P粉178132828 2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactNam...

P粉237125700 2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: ...

P粉212114661 2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

P粉076987386 2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in...

P粉369196603 2023-09-05 15:34:44

How to get average of DATETIME column in MySQL while grouping by other columns

I'm creating and populating a MySQL table using the following query: SETtime_zone='+00:00';CREATETABLEtimestamp_n_datetime(idINT,timeDATETIME,avg_timeDATETIME);INSERTINTOtimestamp_n_datetime(id,time,avg_time)VALUES("1","2023-01-0310:

P粉460377540 2023-09-05 11:46:21

Multi-device (mobile phone) synchronization - React Native

I'm trying to create a Lightshow that will launch on all users' mobile devices at the same time (can have up to 2000-3000 users). All users will use the Internet (Wi-Fi or mobile data). In our FE we use Apollo for subscriptions and it works like a charm. But the problem is, user A can get subscribed...

P粉151466081 2023-09-05 11:58:38