note 77697 deleted from features.file-upload by felipe

Note Submitter: ash at atomic-network dot co dot uk 

----

I have always wanted to just allow image files; and found using an array which would work on IE, FF, And Opera etc.
would be to define the "image/name" for all of those.
as IE is "image/x-name" and FF is "image/name" etc.

<?php
function  image_valid($type)
{
	$file_types  = array(   
	'image/pjpeg' 	=> 'jpg', 
	'image/jpeg' 	=> 'jpg',
	'image/jpeg' 	=> 'jpeg',
	'image/gif' 	=> 'gif',
	'image/X-PNG'	=> 'png', 
	'image/PNG'	 	=> 'png', 
	'image/png' 	=> 'png', 
	'image/x-png' 	=> 'png', 
	'image/JPG' 	=> 'jpg',
	'image/GIF' 	=> 'gif',
	'image/bmp' 	=> 'bmp',
	'image/bmp' 	=> 'BMP',
	);
	
	if(!array_key_exists($type, $file_types))
	{
		return "FALSE";
	}
	else
	{
		return "TRUE";
	}
}

if(image_valid($_FILES['user_file']['type']) === "FALSE")
{
	die("Image file is not valid");
}
?>