Check picture file type and size before file upload in php

Question

I have the following code:

$filecheck = basename($_FILES[\'imagefile\'][\'name\']);
  $ext = substr($filecheck, strrpos($filecheck, \'.\') + 1);
  if (($ext          


        

Answer 1

take note that for Internet Explorer, they submit JPEG file's mime type as image/pjpeg - which is different from other browsers.

Here's a simple function to get your mime type against the file extension:

function mime2ext($mime){ // mime is like image/jpeg
    $m = explode('/',$mime);
    $mime = $m[count($m)-1]; // get the second part of the mime type
    switch($mime){
        case 'jpg':
        case 'jpeg':
        case 'pjpeg':
            return 'jpg';
            break;
        case 'png':
            return 'png';
            break;
        case 'gif':
            return 'gif';
            break;
    }
    return '';
}