How to allow users upload files to server

In this post I will explain how to allow our visitors or site admin to upload files to our web server using html forms and php syntax.
I will also show how to block harmful files and prevent them from being uploaded.

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Creating a file upload system
In this tutorial I will show you how to create a simple file upload system with your user can upload a file from the local computer to your webserver. As you will see it is not so complicated to implement this very usefull script. However it can be dangerous if every visitor can upload files without any restriction. You can easy have a situation that there is no more free space on your server.


Secure File Upload with PHP
PHP makes uploading files easy. You can upload any type of file to your Web server. But with ease comes danger and you should be careful when allowing file uploads.In spite of security issues that should be addressed before enabling file uploads, the actual mechanisms to allow this are straight forward. In this tutorial we will consider how to upload files to some directory on your Web server. We will also discuss security issues concerned with the file uploading.


Easy way to Upload files using PHP
So do you want to upload files to your server, here's is an easy way to Upload files using PHP.


Create a simple FTP class
FTP is well known to all designers/developers to moves files from a local computer to a remote web server, What if you want to copy a file from one server to another? the recommended choice would be to use SSH or telnet but if you don't have access to these then you would download the files via FTP and then upload them to the new location.


Advanced File Uploader
This allows users to upload files to your server in a specific folder, with a specific file size, with a specific allowed extension list, and more....


Uploading Files With PHP
Upload an image or file to your server without using your FTP.


Upload and Resize an Image
You have created a cool contact directory and you want to allow people to upload their own photos, or you want to create an image repository which you upload images and create thumbnails out of them. Whatever it is, you need to be able to upload images and resize them.PHP has the ability to upload files such as documents or images using the multipart/form-data protocol, but how do you use this and how do you resize the images after they are uploaded?


PHP Multiple files upload
You can upload multiple files with one time submittion. Array is a big role in this tutorial, let's see the scripts.


Multiple File Upload
The script has been built to allow you to upload multiple files in one form upload.


Uploading Files
Tutorial: Learn how to upload a file using php and save it to server's hard drive.


Php file upload
In this tutorial i will teach you how you can upload files to your website using PHP. I will teach you the basics and show you how to manage witch files may be uploaded.


PHP Upload Function
Uploading a file using PHP is not a single step function. To make this easier, I have created a function that will upload a file with just one function call. Just upload('image'); and the file is uploaded! upload() is a function that makes uploading files very easy.


Simple PHP upload file script with size and file type limitation
Simple PHP upload file script with size and file type limitation, this is a simple script for uploading files into web-server using PHP. Here I’ll show you, restricting file size and also restricting file types. Here I’ll show you how to upload multiple files using PHP. Here you can find step by step code and it is simple to understand the code. If you want you can download complete script, you can find download link bottom of this article.


Bike - drop in phpMyAdmin replacement
Pretty often you need to run a couple of queries against your MySQL database on the client's web server. Usually phpMyAdmin does the job well but there are situations when you just need to upload something to the server and open in the borwser, without any configuration steps.

Welcome Bike, lightweight phpMyAdmin replacement. If you already have a CMS installed on the web server (WordPress, Drupal, Joomla), simply upload Bike to CMS's subfolder and open it in the browser.


The $_FILES Global Variable
The $_FILES variable in PHP is one of the more complicated global variables in PHP. With it, you can upload files to the server and find a bunch of stuff out about those files.


Upload and Rename File
This tutorial show you how to rename file when upload file to server to prevent new file overwrite an old file that exists in you server.


How to Upload a File with PHP
If you want to upload files to your website, making a PHP file uploader is easier than you think. I'm going to show you a quick example how to build one that you can easily use, and modify for your needs.


How to upload a file on archive.org using cURL
In this article i’m going to show how to upload from our server and store in the archive an audio file with a HTTP request using cURL and php. A basic code snippet that hopefully will help other web developers looking for examples since the official documentation lacks information about it.


PHP Form Image Upload
This tutorial shows you how to upload an image on your server using PHP and html forms. You will also learn how to verify if the uploaded file is an image (checking the extension), if it doesn't overtakes a size limit and how to change the uploaded file name.


FTP Upload via cURL
Upload a file to a FTP server using cURL.