On Tuesday 18 November 2003 01:12,
"Arivazhagi Govindarajan" <[EMAIL PROTECTED]> sent a missive stating:

>     PHP Questions
>
> 1. Explain about session management and cookies ? In PHP how we can
> maintain a session

http://us3.php.net/session

> 3. How to enable PHP in Apache server manually?

http://us3.php.net/manual/en/installation.php


> 4. When we upload a file using <INPUT> tag of the type FILE what are global
> variables become available for use in PHP

http://us2.php.net/features.file-upload

> 5. Explain SQL injections ? How we can avoid this

See various web docs. Try Google or PHP site. PLenty of info.

> 6. Write a small script to connect a MYSQL server in PHP

http://us2.php.net/function.mysql-connect

> 8. Using single Apache server can we host multiple sites . If yes how can
> we do this if no why it is not possible

Yes. 
http://httpd.apache.org/docs/   or   http://httpd.apache.org/docs-2.0/


> 10. Write a function in PHP script to check whether string is a valid email
> id or not?

Lookup email and regular expression checking. About 10 examples are here as 
well:
http://us2.php.net/ereg



Henrik
-- 
Henrik Hudson
[EMAIL PROTECTED]

"`If there's anything more important than my ego
around, I want it caught and shot now.'" 
        --Hitchhikers Guide to the Galaxy

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