In PHP, a file is a resource object, from which data can be read or written to.
File handling in PHP refers to the ability to create, read, write, and delete files on the server.
• PHP provides built-in functions that allow developers to perform these operations, making it easy to manipulate files for storage, retrieval, and modification of data.
• File handling is essential for applications that need to save data, such as logging activities, saving configuration settings, or creating downloadable content.
File Handling in PHP: Common Operations
PHP provides several functions for file handling, such as:
- Creating/Opening a File: Using functions like fopen(), which can open a file for reading, writing, or both.
- Reading a File: Using functions like fread() and fgets() to read the file content.
- Writing to a File: Using functions like fwrite() to add or overwrite content in a file.
- Closing a File: Using fclose() to safely close the file after operations.
- Deleting a File: Using unlink() to delete a file from the server.
