Course Introduction：Operating CSV files in PHP is mainly implemented through fgetcsv and fputcsv functions. 1) Read CSV file. Use the fgetcsv function to read and process data line by line. 2) Write to CSV file. Use the fputcsv function to write array data to the file. Note that line-by-line reading is used when file encoding and large file processing to optimize performance.
2025-05-20 comment 0 530
Course Introduction：mongodump and mongorestore are used for binary backup and recovery, suitable for database migration and backup; mongodump exports BSON files, supports export by database or collection, and can specify output directory and authentication information; mongorestore restores data from backups generated by mongodump, and supports overwriting existing data; mongoimport and mongoexport are used for data exchange in JSON and CSV formats; mongoexport can be exported to JSON or CSV, and supports field filtering and query filtering; mongoimport imports JSON or CSV data, and can specify types and table headers; when using it, please pay attention to paths and naming.
2025-08-25 comment 0 693
Course Introduction：PHP cURL with HTTP POSTIntroductioncURL is a library used in PHP for transferring data over a network. One common use case for cURL is to send...
2024-12-24 comment 0 686
Course Introduction：This article will introduce how to implement the function of refreshing CSV data regularly in Flask applications. By using Python's timed task library, such as APScheduler or Celery, you can create a stand-alone process that regularly crawls and updates CSV files, while Flask applications focus on reading the latest CSV data. This article will focus on how to implement this using APScheduler and discuss file locking issues to ensure data consistency.
2025-08-27 comment 0 146
Course Introduction：Implementing data import in PHP can be achieved through the following steps: 1) Use the fgetcsv function to read the CSV file and process the data line by line; 2) Use the PhpSpreadsheet library to read the Excel file and traverse the cell data. Pay attention to challenges such as data formatting, consistency, performance, and error handling, and follow best practices for using transactions, batch operations, data validation, logging, and user feedback.
2025-05-20 comment 0 966
Course Elementary 13924
Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82479
Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
Course Elementary 13264
Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.
Course Elementary 24727
Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.
Course Elementary 27563
Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.
PHP master looks at an array problem
2017-06-08 11:01:38 0 7 983
The data returned by php query is too large and importing csv files is very slow.
2017-05-17 09:55:57 0 2 887
I have a problem writing on the forum. Can anyone please help me if you have time?
2021-04-04 11:05:06 0 2 1100
thinkphp returns database data all as strings
2019-04-08 16:59:40 0 5 1554
How to get openid after scanning the QR code image generated with PHP?
2017-06-28 16:57:44 0 1 2177
