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Course Introduction：Answer: To handle file upload in Yii, you need to set the form enctype to multipart/form-data, use the UploadedFile class to get the file, verify the file type through the model verification rules, and save the file in the controller. Make sure that the upload directory can be written and renamed for security.

2025-09-01 comment 0  710

Course Introduction：This article aims to solve the common problem that even if the file has been selected, you still receive the "No File Selection" error (UPLOAD_ERR_NO_FILE) during the upload process of PHP file. We will explore the root cause of this error in depth - the post_max_size limitation in PHP configuration, and provide detailed diagnosis, configuration adjustment methods and robust PHP upload processing code examples to ensure that you can upload various files smoothly.

2025-08-26 comment 0  799

Course Introduction：File Uploading Using Java HttpClient and PHPProblem:You aim to create a Java application that can upload files to an Apache server running PHP...

2024-12-07 comment 0  882

Course Introduction：To configure the automatic loading of Composer's classmap, first use the "classmap" key under "autoload" in composer.json to specify the directory or file. For example: {"autoload":{"classmap":["lib/","database/models/"]}}, Composer will scan the .php file in these paths and generate class maps. You can also specify a single file such as legacy_class.php. renew

2025-07-14 comment 0  768

Course Introduction：Core points Uploading files asynchronously using HTML5 and Ajax can be done in the background, allowing users to perform other tasks on the page during upload. This process involves creating HTML forms to upload files to PHP pages, and JavaScript ensures that only JPG images with less than 300,000 bytes are uploaded. JavaScript upload function requires an XMLHttpRequest2 object (available in Firefox and Chrome). The .open() method of XMLHttpRequest is set to POST the data to the PHP page, set the HTTP header to the name of the file, and pass the File object to the .send() method. PHP file inspection

2025-02-25 comment 0  1179

Course Elementary  13899

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  82448

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  13242

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  24702

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  27544

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.