how to remove a https redirection for only one .php file in htaccess

Question

I want to remove the https redirection for my web page only for one .php file. I found this but I don't know how to set my .php direction. Thanks in advance

.php file = www.myhost.com/myphp.php

# force http:// for selected URLs
RewriteCond %{HTTPS} on
RewriteCond %{THE_REQUEST} /commerce_paypal/ [NC]
RewriteRule ^ http://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

Answer 1

You have your condition reversed. You need to use this:

# force https:// to all but selected URLs
RewriteCond %{HTTPS} !on
RewriteCond %{THE_REQUEST} !\s/+myfile\.php [NC]
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

# force http:// to selected URLs
RewriteCond %{HTTPS} on
RewriteCond %{THE_REQUEST} \s/+myfile\.php [NC]
RewriteRule ^ http://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]