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Date: Fri, 23 Mar 2012 17:26:08 +0100
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Subject: Validate complex types
From: francois.gannaz@gmail.com (=?ISO-8859-1?B?RnJhbudvaXM=?= Gannaz)

Hello

I'm wondering if there is a recommended way to validate a multi-type parame=
ter
in an internal function. If a parameter is expected to be "long or string" =
or
to be "integer or null", a simple call to `zend_parse_parameters()` won't
validate it.

I read some extensions' code, and it seems that the preferred method is to =
call
`zend_parse_parameters(_ex)` several times until one validation succeeds or=
 all
fail. I really don't like this solution. Maybe the performance penalty of
parsing twice the arguments is negligible, but I don't even like the idea of
this code. Isn't there a better solution? Or did I miss a good reason for t=
his?

I wanted to use `zend_parse_arg()` to validate a single parameter if the
first call to `zend_parse_parameters_ex()` wasn't successful. But this func=
tion
is never used outside of "Zend/zend_API.c". Is it meant for public use? Are
there any drawbacks in calling it?

Regards
--
Fran=E7ois Gannaz