Course Introduction：How does RecursiveIteratorIterator work in PHP?PHP's RecursiveIteratorIterator is an implementation of an iterator that supports tree traversal....
2024-11-20 comment 0 1163
Course Introduction：Callback Implementation in PHPIn PHP, callbacks, also referred to as "callable" values, enable the referencing of functions or class methods for...
2024-10-28 comment 0 967
Course Introduction：This tutorial aims to resolve the "Undefined index: link" error encountered when trying to get and display the classification link in the PrestaShop 1.7 custom module. We will explain in detail how to use PrestaShop's Link class to pass link objects to the Smarty template in the backend PHP code, and call the getCategoryLink method correctly in the frontend template to dynamically generate a classification URL to ensure the correctness and accessibility of the link.
2025-08-20 comment 0 325
Course Introduction：Slim Framework Middleware: Building Powerful PHP Micro Applications Slim is a powerful PHP mini framework, where middleware features allow implementation of various filter-style services such as authentication and caching in applications. Middleware encapsulates applications and can affect the application's environment as well as request and response objects. Key points: Slim's middleware is a powerful feature that allows the implementation of various filter-style services such as authentication and caching. Middleware encapsulates applications and can affect the application's environment, request and response objects. To implement middleware in Slim, you need to write a class that extends the SlimMiddleware class and overrides the call() method. This method is
2025-02-24 comment 0 643
Course Introduction：XGBoost is an efficient implementation of GradientBoosting, suitable for the classification and regression tasks of structured data. 1) Install and use pipinstallxgboost and import the module; 2) When preparing data, you can directly use Pandas or Numpy input, or convert it to DMatrix to improve efficiency; 3) The training model can be constructed by XGBRegressor or XGBClassifier class; 4) It is recommended to adjust parameters and adjust the parameter combinations such as n_estimators, learning_rate, max_depth, subsample, etc. in turn, and use GridSearchCV to automatically search for the optimal configuration; 5) Pay attention to setting
2025-07-31 comment 0 707
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 13263
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 27562
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.
2018-09-10 10:02:37 0 0 1392
Ask: Why can't the ajax submitted data be transmitted to the controller?
2019-09-18 14:26:09 0 3 1374
Laravel Modal does not return data
2024-03-29 10:31:31 0 1 666
Can I use the automatic generation module of thinkphp5 in Windows 7 system? How to configure and use
2017-10-10 17:04:14 0 2 1456
