.htaccess rewrite image file to php script

Question

Here is what I have for now in my .htaccess and this should work in future:

RewriteEngine On

RewriteCond %{HTTPS} !=on
RewriteRule ^/?(.*) http         


        

Answer 1

Correct answer is:

RewriteRule ^/?tmp/(.*\.png)$ captcha.php?file=$1 [L]

thx goes to Humbedooh@freenode