I think you don't need to break this into two queries... this is really a SQL
question,
not a PHP question...
Just do a "join" on the two tables:
* where table1.cal_id = table2.cal_id
and then have a where clause that does all your filtering:
* and table1.Date > now() and table2.cal_category='501'
Using SQL instead of code is almost always the right thing to do. Learning how
to
do more sophisticated queries will pay off big time in the long run... and good
tutorials are widely and freely available...
From: "Matthew Ferry" <[EMAIL PROTECTED]>
To: <php-db@lists.php.net>
Date sent: Mon, 12 Feb 2007 11:14:32 -0500
Subject: SQL Query - Using variable from another SQL Query
> Hello Everyone....
>
> Got a simple / stupid question.
> Worked on this all night. I'm over looking something very basic here.
>
> The query "event_time" brings back the calendar id for each event that is
> pending in the future.
> ie.... 12, 13, 14, 26 (There could be 100 of them out there)
>
> The second query "events" needs to meet both reqirements.
> 1 - cal_category='501'
> 2 - cal_id= a number from the "event_time" query
>
> I think i need to do a loop inside of a loop
>
> Thanks...
>
> Matt
>
>
> Here is my code:
>
> <?php
>
> $todays_year = date("Y");
>
> $todays_month = date("m");
>
> $todays_day = date("d");
>
> $tstamp = mktime(0, 0, 0, $todays_month, $todays_day, $todays_year);
>
> $event_time = mysql_query("SELECT cal_id FROM egw_cal_dates where cal_start >
> $tstamp", $db);
>
> $events = mysql_query("SELECT * FROM egw_cal WHERE cal_category='501' and
> cal_id='$event_time'\n", $db);
>
>
>
> if ($event = mysql_fetch_array($events)) {
>
> echo "<center>\n";
>
> echo "<HR>\n";
>
> do {
>
> echo "<B><Font
> Size='10'>$event[cal_title] - $event[cal_location]</B></Font>\n";
>
> echo "<BR>\n";
>
> echo "$event[cal_description]";
>
> echo "<BR>\n";
>
> echo "<HR>\n";
>
> } while ($event = mysql_fetch_array($events));
>
> } else {
>
> echo "No Public Events Are Currently Scheduled...";
>
> }
>
> ?>
>
>
