How to upload a file via a web page

Further Web Page and Network Handling example from a Well House Consultants training course
More on Further Web Page and Network Handling [link]

This example is described in the following article(s):
• Uploading an image, document or pdf via a browser (php) - [link]
• Uploading a document or image to its own URL via a browser - [link]

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Source code: upload_test.php Module: H112


<?php

# Following line should be changed to a directory that's
# well away from the area served to users!

$testpath = "/home/wellho/tmp/images";

if ($_REQUEST[completed] == 1) {
        move_uploaded_file(
                $_FILES['imagefile']['tmp_name'],
                "$testpath/latest.img");
        $status = "new file JUST uploaded:";
} else {
        $status = "most recent upload:";
}

# Some statistics to report on

$size = filesize("$testpath/latest.img");
$time = filemtime("$testpath/latest.img");
$time = date("r",$time);

?>
<html><head>
<title>File Upload Demonstration</title></head>
<body>
<h1>File upload in PHP - test script</h1>
This is a complete file upload demonstration in PHP, and it
is intended that you install a copy on your own server to
test uploads. <b>Please note that this demonstration
quarantines the uploaded file in a directory that's well away
from the document root, and only gives you minimal access to
look at the file - giving you timestamp and size data only.
These limits are applied to prevent the scripot being used as
a backdoor to introduce unwanted content to the web site that
you are testing.</b><hr>

<form enctype=multipart/form-data method=post>
<input type=hidden name=MAX_FILE_SIZE value=250000>
<input type=hidden name=completed value=1>
Choose a file to upload: <input type=file name=imagefile>
then <input type=submit></form>

<hr>

<b><?= "$status $size bytes at $time" ?></b>

<hr>

Many visitors to our web site come here because they have
found our <a href=xxx>PHP image upload - store in database
- retreive - display demonstration script</a>.  Although
that script is short, it uses a lot of elements one after
another and from "popping a picture in" at one
end to "pulling it out" at the other, a lot happens behind
the scenes.   This sample page / script if you look at the
source shows you how to test the first stage.<br><br>
The second test stage is to save the image into the database,
pull it back, and make sure it is still the same<br><br>
And the final test stage is to send it back as an http response.

</body>
</html>

Learn about this subject

This module and example are covered on the following public courses:
* Learning to program in PHP
* PHP Programming
* PHP Programming
* Learning to program in PHP
Also available on on site courses for larger groups

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Other Examples

This example comes from our "Further Web Page and Network Handling" training module. You'll find a description of the topic and some other closely related examples on the "Further Web Page and Network Handling" module index page.

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