PHP SQL Combine Records Within Foreach() - php

Question

I'm revisiting this as I'm working on another page that I want to use the same concept.
This page shows the output that I'm currently getting from my MSSQL server.
I have a table of venue information (name, address, etc...) that our events happen on. Separately, I have a table of the actual events that are scheduled (an event may happen multiple times in one day and/or over multiple days). I join those tables with a query (as seen below).
<?php
try {
$dbh = new PDO("sqlsrv:Server=localhost;Database=Sermons", "", "");
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql = "SELECT TOP (100) PERCENT dbo.TblSermon.Day, dbo.TblSermon.Date, dbo.TblSermon.Time, dbo.TblSermon.Speaker, dbo.TblSermon.Series, dbo.TblSermon.Sarasota, dbo.TblSermon.NonFlc, dbo.TblJoinSermonLocation.MeetingName, dbo.TblLocation.Location, dbo.TblLocation.Pastors, dbo.TblLocation.Address, dbo.TblLocation.City, dbo.TblLocation.State, dbo.TblLocation.Zip, dbo.TblLocation.Country, dbo.TblLocation.Phone, dbo.TblLocation.Email, dbo.TblLocation.WebAddress
FROM dbo.TblLocation RIGHT OUTER JOIN dbo.TblJoinSermonLocation ON dbo.TblLocation.ID = dbo.TblJoinSermonLocation.Location RIGHT OUTER JOIN dbo.TblSermon ON dbo.TblJoinSermonLocation.Sermon = dbo.TblSermon.ID
WHERE (dbo.TblSermon.Date >= { fn NOW() })
ORDER BY dbo.TblSermon.Date, dbo.TblSermon.Time";
$stmt = $dbh->prepare($sql);
$stmt->execute();
$stmt->setFetchMode(PDO::FETCH_ASSOC);
foreach ($stmt as $row) {
echo "<pre>";
print_r($row);
echo "</pre>";
}
unset($row);
$dbh = null;
}
catch(PDOException $e) {
echo $e->getMessage();
}
?>
So, as it loops through the query results, it creates an array for each record.
Array
(
[Day] => Tuesday
[Date] => 2012-10-30 00:00:00.000
[Time] => 07:00 PM
[Speaker] => Keith Moore
[Location] => The Ark Church
[Pastors] => Alan & Joy Clayton
[Address] => 450 Humble Tank Rd.
[City] => Conroe
[State] => TX
[Zip] => 77305.0
[Phone] => [phone]
[Email] => info#thearkchurch.com
[WebAddress] => http://www.thearkchurch.org
)
Array
(
[Day] => Wednesday
[Date] => 2012-10-31 00:00:00.000
[Time] => 07:00 PM
[Speaker] => Keith Moore
[Location] => The Ark Church
[Pastors] => Alan & Joy Clayton
[Address] => 450 Humble Tank Rd.
[City] => Conroe
[State] => TX
[Zip] => 77305.0
[Phone] => [phone]
[Email] => info#thearkchurch.com
[WebAddress] => http://www.thearkchurch.org
)
Array
(
[Day] => Tuesday
[Date] => 2012-11-06 00:00:00.000
[Time] => 07:00 PM
[Speaker] => Keith Moore
[Location] => Fellowship Of Faith Christian Center
[Pastors] => Michael & Joan Kalstrup
[Address] => 18999 Hwy. 59
[City] => Oakland
[State] => IA
[Zip] => 51560.0
[Phone] => [phone]
[Email] => ffcc#frontiernet.net
[WebAddress] => http://www.fellowshipoffaith.cc
)
Array
(
[Day] => Wednesday
[Date] => 2012-11-14 00:00:00.000
[Time] => 07:00 PM
[Speaker] => Keith Moore
[Location] => Faith Family Church
[Pastors] => Michael & Barbara Cameneti
[Address] => 8200 Freedom Ave NW
[City] => Canton
[State] => OH
[Zip] => 44720.0
[Phone] => [phone]
[Email] =>
[WebAddress] => http://www.myfaithfamily.com
)
What I'm wanting to do is combine those arrays, in some fashion, so that the venue information isn't repeated every time, but each date/time is show.
I tried typing it out in array style, but couldn't figure out the appropriate multi-dimensionality for it. I'm just pasting how I would like it to display, since that is how it will end up.
The Ark Church
Contact:
Alan & Joy Clayton
450 Humble Tank Rd.
Conroe, TX 77305
[phone]
info#thearkchurch.com
http://www.thearkchurch.org
Meetings:
Tuesday, 2012-10-30 07:00 PM
Wednesday, 2012-10-31 07:00 PM
Fellowship Of Faith Christian Center
Contact:
Michael & Joan Kalstrup
18999 Hwy. 59
Oakland, IA 51560
[phone]
ffcc#frontiernet.net
http://www.fellowshipoffaith.cc
Meetings:
Tuesday, 2012-11-06 07:00 PM
Faith Family Church
Contact:
Michael & Barbara Cameneti
8200 Freedom Ave NW
Canton, OH 44720
[phone]
http://www.myfaithfamily.com
Meetings:
Wednesday, 2012-11-14 07:00 PM
It doesn't necessarily have to end up like that, but it should give a good idea of what I'm looking for.
I don't necessarily have to create a new array. I just want to not show the same information over and over and over.
I was thinking that I could just do some form of compare, in foreach() that says something along the lines of "if Location is the same as previous Location", but I haven't figured out how to do it (is there a way to cache a previous variable with doing $location1 = [Location], $location2 = [Location], etc...?
One thing to note...
These examples don't have different speakers, but sometimes there are. I would like to be able to access the speaker, somehow. I assume that I would want it bound to the actual event.
JJ

Answer 1

One technique: if you have a loop like this:
while ($row = $query->fetch(PDO::FETCH_NUM) ) {
list($time,$place,$etc) = $row;
// display formatted data
}
try this instead:
$row = $query->fetch();
do {
list($time,$place,$etc) = $row;
$row = $query->fetch(PDO::FETCH_NUM);
if ($time != $row[0] && $place != $row[1] && $etc != $row[2]) {
// display formatted data
}
} while ($row);

Answer 2

I usually would approach a problem like this by creating a two-dimensinoal array, indexed by date then ID or in your case by ID then date.
Loop through events (the first dimension) and print out the contents of that event - while in there loop through the dates on that event and print those out as a list as in your example.