The maintainers of PHP.net and the mirror sites are definitely not interested in graphical banner or text ad placement deals.
Please report problems you find on PHP.net and mirror sites in the bug system. Categorize the bug as "PHP.net Website Problem". This allows us to follow the progress of the problem until it is fixed.
For security related issues (in PHP or our websites) please contact email@example.com.
If you have problems setting up PHP or using some functionality, or especially a program written in PHP, please ask your question on a support channel, since the webmasters will not answer any such questions.
If you would like to contact the webmasters for some other reason, please write to firstname.lastname@example.org. Note that this address is mapped to a mailing list and a newsgroup, so every message you send will be stored in public archives at multiple servers.