How to upload images using PHP

johnfrey · #1 (**permalink**) 08-07-2009, 06:07 AM

Uploading a file is a basic requirement of most of the websites. In this post, I will explain in detail about how to upload an image using PHP.

First of all, we will add HTML code to display the browse button to upload an image:

PHP Code:


			
<FORM ENCTYPE="multipart/form-data"  ACTION="_URL_" METHOD=POST>
Upload this file: <INPUT NAME="userfile" TYPE="file">
<INPUT TYPE="submit" VALUE="Send File"></FORM>

This code will display a text area with a browse button to upload an image. Then I'll add PHP code for processing of file upload:

PHP Code:


			
if ($userfile_size >250000){$msg=$msg."Your  uploaded file size is more than 250KB so please reduce the file size and then  upload. Visit the help page to know how to reduce the file size.<BR>";$file_upload="false";}

Now, we will check that only jpeg or gif files can be uploaded into our server:

PHP Code:


			
if (!($userfile_type =="image/pjpeg"  OR $userfile_type=="image/gif")){$msg=$msg."Your uploaded file must be of JPG or  GIF. Other file types are not allowed<BR>";$file_upload="false";}

Finally, running this script will add the file to the mentioned directory:

PHP Code:


			
if(move_uploaded_file ($userfile,  $add)){
// do your coding here to give a thanks message or any other thing.}else{echo "Failed to upload file Contact Site admin to fix the problem";}

Johnny · #2 (**permalink**) 08-07-2009, 01:25 PM

...You haven't actually tried this yourself, have you?

uptown47 · #3 (**permalink**) 09-17-2009, 05:17 AM

Your example will not work, I'm not sure where you got it from but as Johnny says, you mustn't have tried it out.

For starters, where does $userfile_size come from?

You maybe want to compare:
$_FILES["userfile"]["size"] > 250000

If someone is reading this thread please do not panic when the above example doesn't work for you. It is not complete.

mbalrog6 · #4 (**permalink**) 09-19-2009, 04:12 PM

Here is a link to a site that will illustrate exactly how to properly do a file upload.
http://tuxradar.com/practicalphp/8/10/0

You need to use the super array $_FILES to access uploads.

the path that actually contains the file is $_FILES['form-element-name']['tmp_name']

WB Sponsors