Hi,

The question was about the use of mysql_close. Use it or not (not when to use it or 
when not to). So far:

> Agreed... you should always "clean up after yourself."

> PHP will close the connection automatically will be closed and all
> information cleared.

> I advised a newbie to
> always use mysql_close() to close the connection to the database. It's
> good form and will cover any ills where the database connection fails to
> close for some other reason (say the user stops the page from loading
> after the connection is made).

2 says use it
1 says no.

>From my read of docs I'd say not to use it. I use the Perl DBI with Apache::DBI and 
>it simply overrides the DBI disconnect so calling a disconnect is only a waste of 
>minimal time and typing 
when using it. 

So, in PHP there are also 2 types of connections:

mysql-pconnect
mysql_connect

Well if you are using mysql-pconnect then you would "rarely" use mysql_close() as the 
docs say

Using mysql_close() isn't usually necessary, as non-persistent open links are 
automatically closed at the end of the script's execution. See also freeing resources.
__end quote

Okay, so when, when using a persistent connection would I use mysql_close()? 

http://www.php.net/manual/en/function.mysql-pconnect.php

says

"Second, the connection to the SQL server will not be closed when the execution of the 
script ends. Instead, the link will remain open for future use (mysql_close() will not 
close links 
established by mysql_pconnect())."

See the above url for information from user comments about cutting down idle 
connections.

I think it's safe to say one would not use mysql-close() when using mysql-pconnect, 
although I wonder about the cost of doing that. 

http://www.php.net/manual/en/function.mysql-close.php
says

> Using mysql_close() isn't usually necessary, as non-persistent open
> links are automatically closed at the end of the script's execution.

It seems to me better to err on the side of caution and use mysql_close(). If you are 
using a persistent connection then the call to mysql_close() should be overridden but 
I've got no clue if it's 
done that way. Seems to be related to opening and closing a file. In Perl the file 
will close when the script exits and that's fine for quick stuff but once a script 
begins to grow it allows for bugs. 

I vote to suggest use of mysql_close().

Peter





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