24 Aug 2025

This tutorial explains the core practices of file read and write operations in PHP in detail. Through a specific grade processing case, it demonstrates how to use the file() function to read file contents into an array, perform data type conversion and business logic processing, and then use fopen() and fwrite() to write the processed data into a new file. It emphasizes the importance of file handle management and error handling, aiming to help developers build robust file operation scripts.

11 Aug 2025

This article discusses in depth how to use the pyads library to efficiently process PLC real-time data notifications. For high concurrency and large data volume scenarios, we propose and elaborate on class encapsulation-based solutions to avoid global variables and achieve clearer state management and data accumulation. At the same time, the article also introduces key techniques for optimizing data parsing performance, including batch processing using raw byte data and NumPy, aiming to help developers build a robust and high-performance PLC data acquisition system.

08 Aug 2025

Using a while loop combined with a PHP generator can efficiently process large-scale data sets to avoid memory overflow; 2. The generator returns data one by one through the yield keyword, and only generates values when needed, significantly reducing memory usage; 3. The while loop provides more refined control compared to foreach, supporting early exit, conditional judgment and runtime logic adjustment; 4. This mode is suitable for scenarios such as large file reading, database result streaming processing, such as reading logs line by line or processing user data in batches; 5. Data filtering, conversion and pipeline processing can be achieved through a combination generator to improve code reusability and flexibility; 6. This method has the advantages of low memory consumption, support early termination, and integrated current limiting mechanisms. It is an ideal for handling unlimited or massive data streams.

06 Aug 2025

This article addresses the issue of public attribute type limitations in Livewire components, especially the type errors encountered when using the paginate() method to get paginated data. We will dig into the cause of the error and provide an effective solution to implement the pagination function in Livewire components by adjusting the data delivery method and bypassing type restrictions.

16 May 2025

The .xsm file is an XMLSchema file that defines the structure and constraints of an XML file. 1) Use a text editor such as Notepad or VisualStudioCode to open the .xsm file. 2) For advanced features, use OxygenXMLEditor or AltovaXMLSpy for Schema verification and autocomplete. 3) Through Python's lxml library, you can verify whether the XML file complies with Schema, and use streaming processing to optimize the processing performance of large files.

21 Oct 2024

Efficient JSON file processing is important in modern applications. If JSON file is large in size, we need to handle it properly to avoid heap out of memory error and heavy resource consumption. GSON is one of the best library available in Java to p