Looking for a data export after query in ThinkPhp 3.2

The student management system built using ThinkPhp 3.2 is always unable to export the queried data. What is exported is all the data, and the data exported by the sub-administrator is also all the data. The query at the front desk is appropriate but the export is inappropriate. Which one? The master...

为梦兼程 2019-04-20 10:40:12 0  3  1088

Get column names and data for CSV export (MYSQL) using PHP

I need a way to export a MYSQL database to CSV via PHP, but I also need to select the column names. So far I have the following, which does everything I need except getting the column names. echo"ExportStarting\n";$SQL=("SELECT*FROMINF_TimeEntriesWHEREExportedISNULL");$result=mys...

P粉579008412 2023-11-04 21:59:58 0  2  783

javascript - How to dynamically assign IDs when exporting multiple pieces of data?

When you click Export, you need to export all the data shown below. Each piece of data has an ID. Please tell me how to assign the displayed ID result set to the onclick hyperlink. Please ask arrs=? of? How to fill in the data for account change?

阿神 2017-06-12 09:24:05 0  2  693

In MongoDB, how to aggregate the data that records location information and query it to get the results?

Vehicle monitoring project records vehicle GPS positioning data. When we inspected highways in Zhejiang Province, the GPS heat map showed that the result became like this, as shown in the figure: In MongoDB, the format of stored data is as follows {{Code... } } After querying, the json format return...

某草草 2017-06-14 10:54:45 0  2  973

PHP wants to use queues to export very large data from the database and download it. How to achieve this?

Using PHP, there are millions of data in the database, but it cannot be found directly. It also requires complex calculations and exporting after calculation. So I want to use queues to solve this problem, or there are other ideas. And you can use ajax to monitor queue execution. Note: It doesn’t ha...

阿神 2017-05-24 11:34:20 0  3  869

Rendering data in a table using jQuery in PHP

I have a data and I use PHP to access them. So I created a simple button and when I click it my program needs to create a table containing the data. Below you can see the jQuery code that reads the data and creates a table. But the problem is, I can't access every element in DATA. I want to clarify ...

P粉894008490 2023-09-04 09:54:29 0  1  560

javascript - The problem of using MongoDb to store session data in Node and Express development. According to the book, the following questions appeared. I have been searching for a long time and cannot find the answer. I would like to ask everyone for advice.

Error code for using MongoDb to store session data: // Using mongoDb to store session data {code...} An error occurred when running {code...} I searched Baidu and Google for a long time, and tried require('session-mongoose ')(require('express'));Wait, but it still failed...

世界只因有你 2017-06-10 09:48:01 0  2  918

How to return and update data in PHP

After modifying the form with PHP, use <script type="text/javascript">window.history.go(-1);</script> after submission. The database modification is successful, but the original data is still displayed after the page is returned, and it needs to be refreshed manually. New data ...

P粉726632954 2022-11-07 14:30:56 0  0  583

php get web page data

I want to write a web page data collection with cookies. I don’t know how to write PHP. Can anyone explain the collection URL = “https://steamcommunity.com/tradeoffer/new/partnerinventory/?sessionid=29475e48124c520cf70060dc&partner=76561198124311480&appid=433850&contextid=1

吕大大大大大 2017-07-21 18:06:59 0  1  1330

How to search and filter data in a table using PHP?

I want to search and filter data in a table but I don't know how to do it as I'm currently learning php. This is my php script for searching the data <?phprequire('./conn.php');if(isset($_POST['search'])){$valueToSearch=$_POST['query'];// searchinalltablecolumns//usingconcatmysql<function>&...

P粉287726308 2023-12-29 14:08:25 0  1  534

How to save session-related data in php jwt?

How to save session-related data in php jwt? For example, in the session, the data related to this session can be saved in the session, and it will be directly taken out and used through the session next time.

过去多啦不再A梦 2017-05-16 13:16:45 0  1  569

After uploading the WORD document to the php web system, it can be edited on the web page and the data can be saved.

I want to upload a word document to the PHP web system. After uploading, I can edit it on the page. How to save data to the database? Is there any plug-in required?

歌神～ 2019-06-11 10:47:49 0  2  1335

Can PHP do data processing related to principal component analysis?

I want to make a management information system for managing data. I don’t know if PHP can implement related functions, or if I can call external programs to implement PHP, I am still very basic. I hope you guys can give me some guidance.

YOSIN_L 2019-02-14 16:25:42 0  2  1101

php - How to split large batches of data?

Hello everyone, there are 10,000 orders in the database, and various calculations need to be performed on the orders every day. The language used is php+mysql. Because so much order data was not considered in the previous design, I used a very conventional method of writing and updating all the data...

女神的闺蜜爱上我 2017-06-24 09:41:39 0  2  1010

Unable to export data

Error C:\phpstudy_pro\WWW\fanfancy\admin\Controllers\systemCon.php:10:null

岸上鱼 2021-09-26 11:23:08 0  2  825

How to improve the efficiency of php excel export

How to improve the efficiency of phpexcel export (note: the cvs format can be ignored, this export has the operation of operating cells) What I think of now is: Optimizing SQL now has an interface for data details, and now it is to get the ID array of the data to loop through this The project detail...

欧阳克 2017-06-14 10:49:59 0  4  1274

Why can't PHP maintain a long connection when using Sever-Sent Event? Instead, it disconnects immediately after returning data.

As the title states, when PHP uses SSE, every time the connection is successful, data is returned, and then the connection is interrupted. Originally, SSE should maintain a long connection, and then return new data to the front end if the data changes. Why can't you maintain a long connection? The b...

无乐 2020-01-03 17:05:25 0  0  1015

Building an application using MongoDb and Laravel 8.83

I'm a beginner in php and Laravel, I'm trying to build this simple CRUD application using mongodb as database, I'm using https://www.mongodb.com/compatibility/mongodb-laravel-intergration as a tutorial to learn how to do this I'm currently stuck on displaying data in laravel, I've added the database...

P粉155551728 2024-03-31 22:18:53 0  1  473

How to extract and access data from JSON using PHP?

This is a general reference question and answer covering many of the never-ending "How do I access data in JSON?" questions. It deals here with the broad basics of decoding JSON in PHP and accessing the results. I have JSON: {"type":"donut","name":"Cake&q...

P粉099985373 2023-08-23 20:52:16 0  1  498

How to write json file to mongodb - Stack Overflow

I have a .json file with tens of thousands of data. I want to import it directly into mongodb. How should I do it?

高洛峰 2017-05-16 13:36:08 0  1  467