use thinkphp5.1x for api interface development when doing the list query interface: you want to use parameters to control the returned data of the query, roughly as follows null what exactly is my problem and is there a security risk in my wa...
id name relation 1 n1 r1 2 n2 r2 3 n4 r1 4 n5 r1 5 n6 r2 6 n6 r1 the relation relationship of the table is shown above where the relation field indicates the relationship between the cur...
my need is to be able to make a list of private messages and take the last private message record. For example, the structure of the data table: id pid from_userid to_userid content time 10 a b hi 01 21 b a hello 02 3 1 a b hihi 04 40 a c test 09 5...
the business table has too much data to design 4 sub-tables, and then the requirement is to export the full data of the 4 tables. Test machine 4 cores. Start 4 threads to query at the same time, and summarize the final results. if it takes 2s for a ...
there are multiple items under an order. The order object is stored in the form of nested, and an order is a piece of data. order 1-> Commodity A, Commodity B, Commodity C, Commodity D order 2-> Commodity A, Commodity B, Commodity C, Commodity D. or...
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1: problem description use vue s elmentui as background system! Use echarts to display data (line chart)! It is found that there is a problem with the introduction of updated Abscissa display when the data is normal! If the Abscissa array is empty, th...
1, create-react-app after antd is configured to load on demand, there will be some warning messages, how to solve or block the warning message, and look uncomfortable ...
first quote original in-depth understanding of the JavaScript series (11): execution context (Execution Contexts) The eval code is a little interesting. It has a concept: calling context (calling context), for example, the context generated when t...
1 because $_ POST in php cannot get the json value, use the file_get_contents ( "php: input ") method to get it. After 2 is obtained, the value is obtained: title=ww&imgFile=%2Fpublic%2Fupload%2Fimage%2F20180712%2F20180712024544_27715.jpg 3...