Php upload image to directory

Question

Ive been experimenting with the upload capability of php, I have been looking at this tutorial on w3school.

http://www.w3schools.com/php/php_file_upload.asp
         


        

Answer 1

Your validation code is checking the extension, mime type and file size.

You are probably uploading a file with uppercase characters in the extension. When you check the extension, you checking it case sensitive, .JPG is a valid image file extension, so you should make your check case insensitive:

if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/png")
|| ($_FILES["file"]["type"] == "image/pjpeg"))
&& ($_FILES["file"]["size"] < 20000)
&& in_array(strtolower($extension), $allowedExts))
         // ^ added strtolower()

If that isn't the immediate problem then the file is too big or has the wrong mime type. To debug, view the files array with:

print_r($_FILES);