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Article Introduction：Recursive Directory and File WalkerThis article presents a solution in PHP for recursively traversing a directory, listing all its folders,...

2024-11-26 comment 0  743

Article Introduction：This article will introduce how to use PHP to read all file names in a specified directory and pass these file names to JavaScript code for use. Through PHP's file operation functions and JSON encoding, we can easily obtain file lists on the server and use JavaScript to further process them on the client, such as dynamically displaying file lists or performing other related operations.

2025-08-21 comment 0  815

Article Introduction：Determining Files and Folders in a Directory Utilizing Recursive PHP FunctionsThis discussion investigates a method for traversing a directory's...

2024-12-02 comment 0  1034

Article Introduction：Java's File class represents file and directory paths, handling platform-specific formatting. It provides methods for file manipulation, including deletion and renaming. The class is abstract and uses strings (absolute or relative paths). This arti

2025-02-07 comment 0  1131

Article Introduction：Create a ZIP file using ZipArchive class: instantiate the object, call the open() method to create the file, addFile() or addFromString() to add content, and finally call close() to save. 2. The entire folder can be added to the ZIP by traversing the directory. 3. Make sure to check the return value of open() and ensure write permissions. 4.PHP uses standard ZIP compression by default. Simple and reliable operation.

2025-08-30 comment 0  710

Article Introduction：The C 17 file system library provides a unified, type-safe interface, making file and directory operations more intuitive and efficient. 1) The std::filesystem::path class simplifies path operation; 2) The std::filesystem::directory_iterator facilitates traversing directories; 3) Pay attention to exception handling and performance optimization to ensure the robustness and efficiency of the program.

2025-04-28 comment 0  1061

Article Introduction：This tutorial details how to use PHP to delete files with a specific string on a remote server with a file name that contains a specific string through the FTP protocol. The content covers two main scenarios: directly deleting files in the specified directory, and recursively traversing subdirectories for file search and deletion. Help developers manage FTP files efficiently and securely through sample code, step-by-step parsing and precautions.

2025-09-10 comment 0  730

Article Introduction：The seven magic constants of PHP are __LINE__, __FILE__, __DIR__, __FUNCTION__, __CLASS__, __TRAIT__, __METHOD__, and they can dynamically return code location and context information, 1. LINE returns the current line number, for precise debugging; 2. FILE returns the absolute path of the current file, often used to reliably introduce files or define root directory; 3. DIR returns the directory where the current file is located, which is clearer and more efficient than dirname (__FILE__); 4. FUNCTION returns the current function name, suitable for function-level log tracking; 5. CLASS returns the current class name (including namespace), in logs and factories

2025-07-30 comment 0  969

Article Introduction：There are three solutions to prevent the display of directory lists: 1. Use the .htaccess file (for Apache), add the Options-Indexes command in the target directory to prevent the display of directory contents; 2. Modify the server configuration file (general practice), make sure Options does not contain Indexes in Apache, add autoindexoff in Nginx; and restart the service; 3. Put a blank index file and place the index.html or index.php file in the directory to make the server load the file first and avoid displaying the directory contents. These three methods can be selected and used according to permissions and environment, and can effectively prevent the directory content from being listed.

2025-06-29 comment 0  415

Article Introduction：Using Composer and PSR-4 is the recommended way to automatically load classes for PHP. The namespace and directory mapping is defined through composer.json, and the automatic loader is generated by running composerdump-autoload. The class file can be automatically loaded by introducing vendor/autoload.php into the entry file, without manual inclusion, improving code maintainability.

2025-08-24 comment 0  995

Article Introduction：How to Obtain File Names within a Directory Using PHPIn PHP programming, retrieving the file names present within a directory can be accomplished through various methods. This article showcases several approaches for accessing and displaying the file

2024-10-18 comment 0  1078

Article 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  777

Article Introduction：std::filesystem provides standardized methods for cross-platform file and directory operations. 1. Use the path class to process path combination and parsing; 2. Check file status such as exists, is_directory; 3. Create or delete directories and remove; 4. Traverse directory contents through directory_iterator; 5. Error handling needs to be combined with error_code or try-catch to ensure robustness.

2025-07-20 comment 0  725

Article Introduction：First, confirm that the Zip extension is enabled in the PHP environment, then use the ZipArchive class to open the specified ZIP file and call the extractTo method to extract it to the target directory, and finally close the archive. The sample code shows the compression process and the prompts for success or failure. It is necessary to ensure that the file path is correct, the target directory is writable, and pay attention to preventing security risks such as ZIPslip.

2025-09-08 comment 0  906

Article Introduction：PHP has eight magic constants that change automatically according to usage location for debugging, logging, and dynamic functions. 1.LINE returns the current line number, which is convenient for positioning errors; 2.FILE returns the absolute path of the current file, which is often used to include files or log records; 3.DIR returns the directory where the current file is located, which is recommended for path reference; 4. FUNCTION returns the current function name, which is suitable for function-level debugging; 5.CLASS returns the current class name, which contains namespace, which is suitable for class context recognition; 6.TRAIT returns the current trait name, which points to the trait itself even when called in the class; 7.METHOD returns the class name and method name of the current method (such as Class::method), which is used for tracing

2025-07-30 comment 0  633

Article 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  743

Article Introduction：Laravel's Storage facade provides a unified API to simplify file storage management. 1. The configuration driver sets disk type and parameters through filesystems.php and .env; 2. Common operations include uploading put, reading get, deleting delete, checking exists and generating urls; 3. When processing multiple files, you can use putFileAs and traversing directory files methods; 4. Notes cover disk selection, unique file name prevention, permission configuration and caching issues. For example, uploading avatars uses $path=$file->store('avatars','public') and creating soft links to ensure access, and batch uploads will traverse and process each

2025-07-17 comment 0  174

Article Introduction：This tutorial explores strategies for implementing fine file cleaning in PHP based on the specific suffix of the file name. For files with numeric suffixes (such as -100.json) in the cache directory, we will introduce how to use PHP 8's str_ends_with() function to efficiently judge file suffixes and apply different deletion cycles (for example, regular files are 2 hours and specific files are 7 days), and provide PHP 7 compatibility solutions to optimize file management efficiency and code readability.

2025-08-29 comment 0  179

Article Introduction：Using __DIR__ can solve the path problem in PHP applications because it provides the absolute path to the directory where the current file is located, avoiding inconsistency between relative paths under different execution contexts. 1.DIR__ always returns the directory absolute path of the current file to ensure the accurate path when the file is included; 2. Use __DIR.'/../config.php' and other methods to realize reliable file references, and are not affected by the call method; 3. Define constants such as APP_ROOT, CONFIG_PATH in the entry file to improve the maintainability of path management; 4. Use __DIR__ for automatic loading and module registration to ensure the correct class and service paths; 5. Avoid dependence on $_SERVER['DOCUMENT

2025-07-29 comment 0  924

Article Introduction：First, use $_FILES to obtain uploaded file information, then set enctype to implement file submission through HTML form, then read file name, type, size and other data in PHP, then call move_uploaded_file to move the temporary file to the target directory, and finally check for errors and verify file type and size to ensure safe upload.

2025-08-20 comment 0  897