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When PHP executes a loop to collect data, how to terminate the execution of the program through a button

Do any of you masters know? When collecting data in a loop, how to terminate the execution of the program through a button? The amount of data is very large, and there are millions of loops. What should I do if I want to terminate it?

烛光 2019-11-22 15:56:28

How to display the collected data in real time on the page?

The data is collected from the terminal and sent to the Internet through the communication module. The data needs to be downloaded from the Internet and displayed on the web page in real time. What knowledge do I need to learn? Are there any learning routes, learning methods, books, etc. that you wo...

黄小金 2018-03-23 16:20:15

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

querylist cannot collect strings with decimal points

Why querylist cannot collect strings with decimal points; such as 9.0, 040 million times, etc. If anyone knows, please give me some advice.

Johnny 2020-09-30 08:56:19

Problem filtering data from a dataset based on user input

Here's an overview of what I've tried so far: I have a searchInput element where the user can enter their search query. I use a function to handle the filtering process when the value of searchInput changes. The filter function loops through the dataset and compares each item to the value of searchI...

P粉903969231 2023-09-20 09:37:52

When curl collects web page data, preg_match_all() in the for loop can only obtain the first two pieces of data.

get() can obtain data. When it comes to preg_match_all, only the first two items can be obtained. All the following ones show that there is no record yet. If $i is modified to obtain the third item, only the first two items will be obtained, so the first two items will be obtained. Three items have ...

Amy_烊 2018-11-16 10:10:34

After the PHP CURL collection address is changed, the collected content is still the content of the previous page.

After the PHP CURL collection address is changed, the collected content is still the content of the previous page. It will take a while to collect the content of the new URL.

凹凸 2020-06-03 15:25:03

Learn how to use the JSR223 sampler to store SQL query results into a database table

Please provide step by step process how to connect MySQL database using jsr223 sampler and execute query and store the result in database table? Please provide sample code for this theme

P粉633309801 2023-08-29 22:13:53

About setting up master-slave database in phpstudy

As mentioned, the system is a window system and uses the phpstudy integration package. I want to add a database with port 3307 in phpstudy, but I find that no matter how I do it, I use mysql in phpstudy to make a copy, but I find that the port has been switched and I can only use one port. , and the...

775518228 2017-11-12 15:27:18

java - spring data rest + restTemplate cannot obtain the data collection when building a data reading and writing service

Client: {Code...} Server: {Code...} The data can be obtained normally by inputting the URI on the web page, but the result is empty every time. Does anyone know how to solve it? There is no problem in obtaining a single object, but there is a problem with the data set.

过去多啦不再A梦 2017-06-12 09:27:10

Datatables ajax returns data order inconsistent with data order in table

Datatables in the project uses Ajax as the data source. When ajax returns the data, I check the data returned by ajax and find that the order of the data returned by ajax is inconsistent with the order of the data displayed in the datatables table. How can I make the two display consistent? The foll...

PHP中文网 2017-06-12 09:28:06

How to use PHP crawler to collect Amazon?

Since the last upgrade of Amazon’s website caused the crawler to hang up, Amazon’s anti-pocketing policy is now even stricter. As a result, normal collection cannot be performed. Is there a new acquisition strategy?

Laical 2020-03-26 17:20:49

Trying to list a collection of Firestore databases

I want to list Firestore database collection inside Ionic4 application so I am using the documentation from listCollection section so I applied the sample code in my code: this.afs.firestore.listCollections().then(collections=>{for( letcollectionofcollections){console.log(`Foundcollectionwithid:$...

P粉546179835 2023-08-24 23:19:00

Database returns garbled code

Both the database and connection character sets are set to utf8, but the database query returns garbled characters.

Sun 2019-05-10 11:31:29

Java - When inserting data with empty value into the database, it says that my data is too long.

When inserting null data into the database, the error Data truncation: Data too long for column 'REPLY_TYPE' at row 1 is reported. This field is set to varchar(20). The character set of the program and table is utf_8.

漂亮男人 2017-05-25 15:08:09

Database data

Could you please provide the database data?

虾米 2021-01-12 10:59:30

How sklearn trains large-scale data sets - Stack Overflow

Question 1: Now I have more than 400,000 pieces of data. I need to use some kind of machine learning classification algorithm to build a model for this data. The problem I encountered is that the data is too large and cannot be read at once, so I want to ask. What to do with the data? Question 2: Th...

typecho 2017-06-28 09:22:17

Retrieve result set metadata from the database without knowing the SQL statement

I'm using PHP and HTML and created a database. I'm connected to the database. I'm wondering if there is a way to retrieve data from a database by asking the user to enter an entire SQL statement. I'm really interested in how to get the data without saying $row['id'] For the sake of argument, they wo...

P粉506963842 2023-09-04 14:18:17

When will the PHP Chinese website change the database integrated with the PHP toolbox to MySQL5.6?

When will the PHP Chinese website change the database integrated with the PHP toolbox to MySQL5.6?

Dumbo 2019-05-15 03:03:50

python - Why can't anything be collected even if USER_AGENT is enabled in scrapy's settings.py? Once you close the level, you can collect web pages.

Collected from Baidu Tieba python 2.7.11 scrapy 1.3.3 As long as user_agent is enabled in settings.py, no matter which of the following methods is used. Nothing could be picked. And turn off this user_agent. All can be collected normally. Is this weird? Do not you know why? USER_AGENT ...

伊谢尔伦 2017-05-18 10:49:23