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Date: Tue, 05 Apr 2005 10:52:05 +0200
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Subject: Re: Is it possible to override internal function?
From: johannes@php.net (Johannes Schlueter)

Hi,

the funxtions are stored in the EG(function_table) hash table. So you could
delete or rename the mail function from there and add a new one. 

APD has an override_function() and a rename_function() which can be used to
replace/rename a function by a user defined one. Maybe the code of these
help you a bit.

http://lxr.php.net/source/pecl/apd/php_apd.c#608

For this being successfull it's important that your extension is loaded
after the standard extension.

Even though this works I doubt that you can can rely on it. (stability,
changing APIs, ...)

johannes

Piotr Roszatycki wrote:

> I'd like to create PECL module which could replace mail() function. The
> new function would use SMTP protocol. I can't call any external utilities
> so this is the only posibility to send the mails. The environment is
> shared hosting platform so there are some limits, like forbidding the
> calling suid-ed binaries (like /usr/sbin/sendmail) and low number of user
> processes.
> 
> This have to be hidden implementation so the users won't need to change
> their code, especially calling of mail() function.
> 
> Is it possible to override the internal function in additional module?
> 

-- 
Johannes Schlüter                           Mayflower GmbH / ThinkPHP
http://thinkphp.de                            http://blog.thinkphp.de