PHP File Upload: Complete Step-by-Step Guide

The steps for uploading PHP files are as follows:

1. Create an HTML page with a file upload form.
2. Set the enctype attribute to “multipart/form-data” in the form to support file uploads.
3. Set the form’s method to “POST” in order to upload files to the server.
4. Create a PHP script on the server side to handle file uploads.
5. In PHP scripts, use the $_FILES superglobal array to access information about uploaded files.
6. Check if the uploaded file meets the requirements in terms of type, size, and other attributes.
7. Save the uploaded file to a specified directory using the move_uploaded_file function.
8. After the upload is completed, feedback can be given to the user to inform them whether the file was uploaded successfully or not.

It’s important to note that there are certain security risks associated with file uploads, so in order to prevent malicious file uploads and vulnerabilities, it is recommended to thoroughly validate and filter any uploaded files.