It has been my experience that you sometimes need to do backquotes (`)
in MySQL queries when cutting/pasting into PHP -- it's the same key as
the tilde (~) on my keyboard. Try:
$result = mysql_query("SELECT e_mail FROM subscriptionsdatabase WHERE
`discipleship_mailing_list_e_mail_subscription` LIKE 'on'");
That should work. I've always used the equal sign instead of LIKE, but
that seems to be a matter of preference.
Regarding the second part, with the fopen() and fwrite() commands,
that's certainly doable. For example, you could do something like:
$handle = fopen("/home/blah/blah.txt", "w");
$result = mysql_query(...);
if($result) {
while($somevar = <do mysql fetch from $result>) {
fwrite($handle, $somevar);
}
...
}
fclose($result);
Now, I realize that code is sort of a hack, but since I'm doing it
mostly on the fly, you'll forgive me my coding errors. Take a look at
the Filesystem section of the PHP manual for information on the
fopen/fwrite() commands, and the MySQL section for more information on
MySQL commands in PHP.
Hope this helps a little more in solving the puzzle.
--
Peter Ellis - pellis@xxxxxxxxxxxxxxx
Web Design and Development Consultant
naturalaxis | http://www.naturalaxis.com/
On Mon, 2004-08-09 at 22:44 -0400, Ron Piggott wrote:
> It is a problem having write access to the file. This is what the online
> mySQL manual says ...
>
> The SELECT ... INTO OUTFILE 'file_name' form of SELECT writes the selected
> rows to a file. The file is created on the server host, so you must have the
> FILE privilege to use this syntax. The file cannot already exist, which
> among other things prevents files such as `/etc/passwd' and database tables
> from being destroyed. The SELECT ... INTO OUTFILE statement is intended
> primarily to let you very quickly dump a table on the server machine. If you
> want to create the resulting file on some client host other than the server
> host, you can't use SELECT ... INTO OUTFILE. In that case, you should
> instead use some command like mysql -e "SELECT ..." > file_name on the
> client host to generate the file.
>
> I need to go with another option.
>
> Another person wrote me and suggested using the fopen(), fwrite() and
> fclose() commands. I haven't investigated this option yet. You know when
> you first learn to walk you do so by example ... I am still needing to know
> which commands to look up and try to apply to my situation. I have got some
> PHP code to work ... I am far from done the project I am working on.
>
> I was able to get the command:
>
> SELECT e_mail
> FROM subscriptionsdatabase
> WHERE discipleship_mailing_list_e_mail_subscription
> LIKE 'on'
>
> to work in the mySQL command prompt but when I put it into a .PHP file I get
> a parse error. I get that parse error by simply coping and pasting the
> command into the PHP file.
>
> In more detail what I am trying to do and why I e-mailed out the question is
> to wipe clean a mailing list data file and re-create the e-mail
> subscriptions data file based on which people joined the list during the
> week.
>
> I am still learning mySQL ... The things you wrote helped me "play" ... I
> didn't get too far in creating code, but I am learning at the same time.
>
> Thanks for the advice.
>
> Ron
>
> ----- Original Message -----
> From: Guus der Kinderen <kinder@xxxxxx>
> Newsgroups: php.db
> To: Ron Piggott <ron.php@xxxxxxxxxxxxxxxxxx>
> Sent: Monday, August 09, 2004 7:22 PM
> Subject: Re: Exporting Data From MySQL Using PHP
>
>
> > Hello Ron,
> >
> > If I understand correctly, you're asking what query to execute (and how
> > to put the result in a textfile) to get the results you want?
> >
> > The first part is described thorougly in the mysql-manual (chapter
> > 14.1.7 for example, search for the SELECT syntax or examples. You'll
> > find it at http://dev.mysql.com/doc/mysql/en/ ). You probably need a
> > query that looks like this:
> >
> > SELECT e_mail FROM your_table_name
> > WHERE discipleship_mailing_list_e_mail_subscription = "on";
> >
> > This will return all the requested e-mail adresses.
> >
> > Having this information printed to a file could be reached by using the
> > INTO OUTFILE form of SELECT. Again, check the mysql-manual. for the
> > exact syntax, but you'll probably end up with somthing like:
> >
> > SELECT e_mail INTO OUTFILE '/some/filename.text' FROM your_table_name
> > WHERE discipleship_mailing_list_e_mail_subscription = "on";
> >
> > There are a bunch of other options and solutions, though this seems the
> > easiest one to me. Mind that if you try to do this in PHP (and trough a
> > webserver), the webserver should have write-access to the file you
> > specify with 'OUTFILE' - that might be a problem. Personally, I'd run
> > this as some sort of batch script (using the mysql command line
> > interface with the -e option, for example).
> >
> > Hope this helps you along a bit.
> >
> > Regards,
> >
> > Guus der Kinderen
> >
> >
> > Ron Piggott wrote:
> >
> > > I have created a MySQL database. The table I am creating is a
> subscriptions
> > > database. I want to be able to export all e-mail addresses stored in
> the
> > > "e_mail" column into a plain text file on the web server (1 e-mail
> address
> > > per row) where the "discipleship_mailing_list_e_mail_subscription"
> equals
> > > "on". I am new at PHP and I am not sure how to do this yet.
> > >
> > > My idea is that the user would click an "UPDATE" button and this action
> > > would be performed. Are any of you able to help me with this?
> > >
> > > Thanks. Ron
> >
> >
>
> --
> PHP Database Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
