File upload in PHP

Last update on September 09 2017 06:08:52 (UTC/GMT +8 hours)

Description

In this page, we will discuss how file uploading is performed using PHP. For uploading files using PHP, we need to perform following tasks -

1. Set up an html page with a form using which we will upload the file.
2. Setup a PHP script to upload the file to the server as well as move the file to it's destination.
3. Inform the user whether the upload was successful or not.

Code :

<html> <body> <form action="upload_file.php" method="post" enctype="multipart/form-data"> <label for="file">Filename:</label> <input type="file" name="file" id="file" size="20" /><br /> <input type="submit" name="submit" value="Submit" /> </form> </body> </html> <?php if (file_exists("upload/" . $_FILES["file"]["name"])) { echo $_FILES["file"]["name"] . " already exists. "; } else { move_uploaded_file($_FILES["file"]["tmp_name"],"upload/" . $_FILES["file"]["name"]); echo "Stored in: " . "upload/" . $_FILES["file"]["name"]; } ?>

Explanation

Code	Explanation
$_FILES["uploaded_file"]["name"]	The original name of the file uploaded from the user's machine.
$_FILES["uploaded_file"]["type"]	The MIME type of the uploaded file. You can use different types for test files, images and video.
$_FILES["uploaded_file"]["size"]	The size of the uploaded file in bytes.
$_FILES["uploaded_file"]["tmp_name"]	The location in which the file is temporarily stored on the server.
$_FILES["uploaded_file"]["error"]	An error code if the file upload fails.

Code

Explanation

$_FILES["uploaded_file"]["name"]

The original name of the file uploaded from the user's machine.

$_FILES["uploaded_file"]["type"]

The MIME type of the uploaded file. You can use different types for test files, images and video.

$_FILES["uploaded_file"]["size"]

The size of the uploaded file in bytes.

$_FILES["uploaded_file"]["tmp_name"]

The location in which the file is temporarily stored on the server.

$_FILES["uploaded_file"]["error"]

An error code if the file upload fails.

This way you can upload files to a web server. We encourage you to copy the codes above and try it on your computer or a web server.