Wordpress displays content of my php.ini file on every pages

I'm facing a real problem that i've never seen before.. I could'nt find any post on this subject on any help forum. So pleaaase help me if you encountered this thing !! :)

Let me explain: I'm hosting a wordpress site at 1and1.com on a mutualized hosting. All is up to date (wordpress and all plugins installed) The probleme is that it shows twice the content of my php.ini file on the top of every pages of my site. Here is the text displayed:

upload_max_filesize = 64M post_max_size = 64M memory_limit = 128Mupload_max_filesize = 64M post_max_size = 64M memory_limit = 128M

It appears just after the BODY opening tag.

I managed to solve the problem once last week by deleting the php.ini file but it seems that it has been recreated automaticaly because the problem appears again today.

Does anyone has information about this? Or just a direction to search?

Thank you very much for any idea!