fopen($url) failed to open stream: Permission denied in
===

I have to website with a very similar php configuration (actually on the same hosting account), with almost identical php code and with identical file structure. At some point, I call *fopen(http://example.com/rssfedd.xml)* to retrieve a RSS feed.

on http://sfdmorin.com/accueil/index.php everything works fine, on http://danielpoiriergda.ca/accueil/index.php i get: 

> Warning: fopen(http://affaires.lapresse.ca/rss/2399.xml)
> [function.fopen]: failed to open stream: Permission denied in
> /var/www/vhosts/danielpoiriergda.ca/httpdocs/snippet/lastRSS.php on
> line 143

Both website **have php debug mode enabled** and both have the **same permissions for file and folders.**
Both info.php have ***allow_url_fopen* enabled** for local and master value

Here are the major differences I found on both phpinfo() file:


not working site: Server API	CGI/FastCGI

working site: Server API	Apache 2.0 Handler


and on the working site there are no php.ini file in the path given by the *loaded configuration file* field

I know similar questions were ask, but they did not help me.
Thank you!