//grab the files
	$files_in_dir = glob($this->screenshot_dir.'{'.$this->accepted_exten.'}', GLOB_BRACE);

	// aquire MIME file types of each alleged image
	foreach ($files_in_dir as $key => $file)
	{
		//$file = getimagesize($file);
		$MIMEtypes_in_dir[$key] = exif_imagetype($file);

    		// if true file types match up to accepted, display
    		if (in_array($MIMEtypes_in_dir[$key], $this->accepted_types))
    		{
    			echo ' < a href= " '.$files_in_dir[$key].' " > '.$files_in_dir[$key].'< /a >, ';
    		}
    	}

Originally posted by Gavin

---

because as i understand it exif_imagetype, as well as the getimagesize 'mime' index, uses something similar to mime_magic to search for cues and constants shared by an image type and is therefore evaluates the file type in spite of the file extension. i don't believe the function you gave me does that.

(key words being think and believe, i've never been very good at reading directions )

---

function imcache($cachepath, $type, $function)
{
    // Compose a uniqe'ish filename for cacheing.
    $filename = urlencode($_SERVER["REQUEST_URI"]) . "---" . urlencode($function);
    $filepath = realpath($cachepath)."/".$filename;
    
    
    if(file_exists($filepath) and filectime($_SERVER["PATH_TRANSLATED"]) < filectime($filepath))
    {
        // if a file is there - stream response directly
        header("Content-type: ".image_type_to_mime_type(exif_imagetype($filepath)));
        @readfile($filepath);
        touch($filepath);
    }
    else
    {