Khoá học lập trình PHP&MYSQL - Bài 48: Upload File PHP

Hienu Tech

4 Jun 202212:20

Summary

TLDRThe video script is a tutorial focused on uploading files using PHP. It guides viewers through creating a form and server-side processing to handle file uploads efficiently. The host discusses setting up a folder structure, handling file names, and navigating potential issues like slow processing. The script also covers checking for POST method data, server variables, and implementing file upload functionality using FTP. The tutorial aims to help viewers understand the backend process of file uploads in web development.

Takeaways

😀 The video is a tutorial focused on teaching viewers how to upload files in PHP.
🛠️ The presenter creates a new folder named 'upload' to store files and discusses the importance of file organization.
📝 They mention creating a form for file uploads and discuss the need for a 'flash' element, possibly referring to Adobe Flash for file handling.
🔧 The script discusses the creation of a 'phone' form for file uploads, indicating a step-by-step process.
🌐 The presenter talks about handling file uploads with PHP, including checking for the 'post' method and file data.
📂 They mention the use of a 'server' variable to access uploaded files and the importance of validating file types and sizes.
📁 The video covers the process of moving uploaded files to a specified directory using PHP's 'move_uploaded_file' function.
🖼️ The presenter demonstrates how to handle image uploads, including file type validation and error handling.
📝 There's a mention of using FTP (File Transfer Protocol) to upload files, indicating a step for transferring files to a server.
🔗 The script includes a discussion on URL rewriting for file uploads, ensuring that uploaded files are accessible via a web URL.

Q & A

What is the main topic discussed in the script?
-The main topic discussed in the script is about uploading files in PHP and creating a new form for handling file uploads.
What is the purpose of creating a new folder named 'PhongLuan'?
-The purpose of creating a new folder named 'PhongLuan' is to store information related to the file upload process.
What does the term 'loa' refer to in the context of the script?
-In the context of the script, 'loa' refers to the flash component used in the file upload form.
Why is it necessary to check the file upload method in the script?
-It is necessary to check the file upload method to ensure that the data is being transmitted correctly, either through a POST method or another method.
What is the role of the 'server' variable in the script?
-The 'server' variable in the script contains all the information received from the file upload, including the file name and its path.
What is the significance of the '$_FILES' variable in the script?
-The '$_FILES' variable is significant as it holds the uploaded file information, which is crucial for processing and storing the file.
Why is it important to check if the file upload method is POST in the script?
-Checking if the file upload method is POST is important because it verifies that the file data is being sent correctly through the form for processing.
What does the script suggest to do if the file upload method is not POST?
-If the file upload method is not POST, the script suggests not to process the file upload and to handle the situation accordingly.
What is the function of the 'move_uploaded_file' function mentioned in the script?
-The 'move_uploaded_file' function is used to move the uploaded file from its temporary location to a specified directory.
How does the script handle file names with special characters or spaces?
-The script handles file names with special characters or spaces by suggesting to sanitize or modify the file name to avoid issues during the file upload process.

Outlines

00:00

😀 Introduction to PHP File Uploading

The speaker begins by welcoming the audience back to their channel and introduces a tutorial on how to upload files in PHP. They mention creating a new project and setting up a server environment. The tutorial aims to guide viewers through the process of handling file uploads, including creating a folder to store files and setting up a form for file submission. The speaker also discusses the importance of checking the file upload method and ensuring the server can handle the incoming data.

05:01

😀 Detailed Explanation of File Upload Process

In this paragraph, the speaker delves deeper into the file upload process in PHP. They explain the need to check for the existence of a file and the method of data transmission, whether it's through POST or GET. The speaker also talks about handling file names and paths, ensuring that the server can process and store the uploaded files correctly. They mention using FTP to transfer files to a server and discuss the importance of naming files appropriately for easy identification and retrieval.

10:01

😀 Finalizing the File Upload Tutorial

The final paragraph wraps up the tutorial by summarizing the steps taken to upload files using PHP. The speaker demonstrates how to use FTP to transfer files to a server and how to rename them for clarity. They also show how to check the file's properties, such as size and type, before uploading. The speaker concludes by emphasizing the importance of understanding the file upload process for effective web development and server management.

Mindmap

Keywords

💡Upload

Upload refers to the process of transferring data or files from a local system to a remote server or another computer over a network. In the context of the video, the main theme revolves around teaching viewers how to upload files in PHP, which is a crucial skill for web development. The script mentions creating a form and handling file uploads, indicating that 'upload' is a central action in the tutorial.

💡PHP

PHP is a server-side scripting language designed for web development. It is used to create dynamic and interactive web pages. The video script suggests that the tutorial is focused on PHP, as it discusses creating a form and handling file uploads, which are common tasks in PHP for building web applications.

💡Form

A form in web development is a user interface element that allows users to input data, which is then sent to a server for processing. The script mentions creating a form for file uploads, indicating that it is an essential part of the video's tutorial on handling file uploads in PHP.

💡Server

A server in the context of web development is a computer system or software that provides resources or services to other computers, known as clients. The script refers to the server as the destination where uploaded files are stored, highlighting the server's role in managing data transfer and storage.

💡File Handling

File handling involves the processes of creating, reading, writing, and managing files in a system. The video script discusses file handling in the context of PHP, where the tutorial likely covers how to manage file uploads, process the files, and store them on the server.

💡Variables

In programming, variables are used to store data values. The script mentions using variables to store information about files, such as their names and paths. Variables play a critical role in the video's tutorial, as they are essential for processing and managing file data in PHP.

💡Methods

Methods in programming are functions that belong to an object. The script refers to methods in the context of checking for the existence of certain data transmission methods, such as POST, which is a common method used for sending data to a server in web forms.

💡POST

POST is an HTTP method used to send data to a server to create/update a resource. In the script, POST is mentioned as a method for transmitting file data from a form to a server, which is a typical use case for file uploads in web development.

💡File Paths

A file path is a reference to a location in a file system. It specifies the location of a file or a directory. The video script discusses file paths in the context of specifying where uploaded files should be stored on the server, which is an important aspect of file handling in PHP.

💡Error Handling

Error handling is the process of responding to and recovering from errors during the execution of a program. The script mentions error handling in the context of checking for errors in file uploads, which is a crucial part of ensuring that file uploads are processed correctly and securely in PHP.

💡FTP

FTP stands for File Transfer Protocol, a standard network protocol used for transferring files from one host to another over a TCP-based network. The script refers to using FTP for uploading files, indicating that it might be part of the tutorial on how to move files from a local system to a remote server.

Highlights

Introduction to uploading files in PHP

Creating a new folder for the project

Explanation of the file structure and naming conventions

Setting up a form for file uploads

Discussing the importance of file handling speed

Creating a folder to store company information

Integrating file upload functionality into a form

Explaining the process of handling file uploads on the server-side

Demonstrating how to test file upload functionality

Discussing the use of variables for file handling

Explaining how to check for data submission methods

Using server-side variables to handle file data

Highlighting the importance of error checking in file uploads

Providing a demonstration of the file upload form in action

Discussing the impact of file size on upload performance

Explaining how to save uploaded files to a desired folder

Using FTP to transfer files to a server

Concluding the tutorial with a summary of key points