Try using the mysql_ping() command to check to see if your connection
is available:

http://us2.php.net/manual/en/function.mysql-ping.php

something like:

<?php

if ([EMAIL PROTECTED]()) //Note the @ is because, if mysql_ping cannot get
connected, it will display a warning - suppress so users don't see
{
  connectToDB();
}

mysql_real_escape_string('stuff');

?>

HTH-

James


On Jan 22, 2008 6:04 PM, Dotan Cohen <[EMAIL PROTECTED]> wrote:
> On 23/01/2008, Richard Lynch <[EMAIL PROTECTED]> wrote:
> >
> >
> > On Tue, January 22, 2008 7:01 pm, Dotan Cohen wrote:
> > > I have a file of my own functions that I include in many places. One
> > > of them uses mysql_real_escape_string, however, it may be called in a
> > > context that will or will not connect to a mysql server, and worse,
> > > may already be connected. So I must avoid connecting. However, when I
> > > run the script without connecting I get this error:
> >
> > Don't do that?
> > :-)
> >
> > Can the file really do anything useful without the DB?
>
> The file defines some of my own functions, like these:
>
> function clean_html ($dirty) {
>     $dirty=strip_tags($dirty);
>     $clean=htmlentities($dirty);
>     return $clean;
> }
>
> function clean_mysql ($dirty) {
>     $dirty=str_replace ("--", "", $dirty);
>     $dirty=str_replace (";", "", $dirty);
>     $clean=mysql_real_escape_string($dirty);
>     return $clean;
> }
>
> I use these functions in many places, so I simply put them all in a
> file and include it in each page.
>
> > When there *IS* a connection, how do you access it?
>
> mysql_fetch_array or mysql_result
>
> > Can't the file check somehow?
>
> I suppose that it could, by checking the return of one of the two
> functions above. Lucky for me, I always use UTF-8 so I won't get stuck
> connecting with one encoding yet doing mysql_real_escape_string with
> another, which would be a problem if I had to deal with multiple
> encodings.
>
>
> Dotan Cohen
>
> http://what-is-what.com
> http://gibberish.co.il
> א-ב-ג-ד-ה-ו-ז-ח-ט-י-ך-כ-ל-ם-מ-ן-נ-ס-ע-ף-פ-ץ-צ-ק-ר-ש-ת
>
> A: Because it messes up the order in which people normally read text.
> Q: Why is top-posting such a bad thing?
>

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