我问过a similar question on stackoverflow，但实际上并没有得到任何结果。
This page显示我当前从MSSQL服务器获取的输出。
我有一张我们的活动发生的场地信息表（姓名，地址等）。另外，我有一张预定实际事件的表格（事件可能在一天内和/或多天内多次发生）。我用这个查询加入这些表：
<?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();
}
?>
因此，当它循环遍历查询结果时，它会为每条记录创建一个数组，并以此结束：
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] => (936) 756-1988
[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] => (936) 756-1988
[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] => (712) 482-3455
[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] => (330) 492-0925
[Email] =>
[WebAddress] => http://www.myfaithfamily.com
)
正如您所看到的，The Ark Church及其相关的联系信息是重复的，所以当我使用这些数组并将它们输出到页面时，我会看到一堆重复的内容。
我想删除重复的信息，以便得到与此类似的结果：
The Ark Church
Alan & Joy Clayton
450 Humble Tank Rd.
Conroe, TX 77305
(936) 756-1988
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
Michael & Joan Kalstrup
18999 Hwy. 59
Oakland, IA 51560
(712) 482-3455
ffcc@frontiernet.net
http://www.fellowshipoffaith.cc
Meetings:
Tuesday, 2012-11-06 07:00 PM
Faith Family Church
Michael & Barbara Cameneti
8200 Freedom Ave NW
Canton, OH 44720
(330) 492-0925
http://www.myfaithfamily.com
Meetings:
Wednesday, 2012-11-14 07:00 PM
它不一定要像那样结束（我不是在寻找特定于这些结果的代码，而是一个如何不显示重复信息的概念）。我假设有一个额外的foreach或while会这样做，但我没有想出任何说<?php if ($location == $previouslocation) echo ""; ?>的逻辑。
答案 0 :(得分：0)
你可能想要使用GROUP BY ... HAVING语句。
尝试添加类似
的内容GROUP BY dbo.TblSermon.Date HAVING MIN(dbo.TblSermon.Date)
答案 1 :(得分：0)
哇...
我终于完成了我想要的东西（这是一个痛苦的屁股）。我确信还有其他方法（可能更好的方法）。这实际上以我想要的方式给了我结果。
PHP代码......
<!doctype html>
<html>
<head>
<title>Events | Faith Life Church - Branson, MO</title>
</head>
<body>
<h1>Events <abbr title="And">&</abbr> Meetings</h1>
<?php
// get events from a database
try {
// MSSQL has the ability to use Windows Authentication by not passing a username or password
$dbh = new PDO("sqlsrv:Server=localhost;Database=Sermons", "", "");
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
// get events from the main database
$getoriginalevents = "SELECT TOP (100) PERCENT dbo.TblSermon.Day, dbo.TblSermon.Date, dbo.TblSermon.Time, dbo.TblSermon.Speaker, dbo.TblSermon.Series, dbo.TblSermon.Sermon, 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() }) AND (dbo.TblSermon.Notes NOT LIKE '%Not to be put on our Website%' OR dbo.TblSermon.Notes IS NULL)
ORDER BY dbo.TblSermon.Date, dbo.TblSermon.Time";
// prepared statements are good for security and speed
$originalevents = $dbh->prepare($getoriginalevents);
$originalevents->execute();
// create an array using names instead of keys ($originalevent["Location"] instead of $originalevent[1])
$originalevents->setFetchMode(PDO::FETCH_ASSOC);
// delete the data from the temporary events table (we don't want duplicate events)
$dbh->query("DELETE FROM dbo.Events");
// insert events into a temporary events table (the original database doesn't contain all the information so PHP creates some)
// this will be executed within foreach ()
$putprocessedevent = $dbh->prepare("INSERT INTO dbo.Events (Title, Speaker, Venue, Pastors, Street, City, State, Zip, Map, Phone, Email, Website, Date) VALUES (:title, :speaker, :venue, :pastors, :street, :city, :state, :zip, :map, :phone, :email, :website, :date)");
// for every record that the initial query produces...
foreach ($originalevents as $originalevent) {
// redefine the variables
$title = $originalevent["Location"];
if ($originalevent["MeetingName"]) $title = $originalevent["MeetingName"];
if ($originalevent["Sermon"]) $title = $originalevent["Sermon"];
if ($originalevent["Series"]) $title = $originalevent["Series"];
$speaker = $originalevent["Speaker"];
// if the record ISN'T from Sarasota or the road...
if ($originalevent["Sarasota"] == 0 && $originalevent["NonFlc"] == 0) {
$venue = "Faith Life Church";
$pastors = "Keith & Phyllis Moore";
$street = "3701 State Highway 76";
$city = "Branson";
$state = "MO";
$zip = "65616";
$map = "http://maps.google.com/maps?q=Faith+Life+Church+Branson+MO+65616";
$phone = "+1-417-334-9233";
$email = "general@moorelife.org";
$website = "http://www.flcbranson.org";
}
// if the record IS from Sarasota...
if ($originalevent["Sarasota"] == 1) {
$venue = "Faith Life Church";
$pastors = "Keith & Phyllis Moore";
$street = "6980 Professional Parkway East";
$city = "Sarasota";
$state = "FL";
$zip = "34240";
$map = "http://maps.google.com/maps?q=Faith+Life+Church+Sarasota+FL+34240";
$phone = "+1-941-388-6961";
$email = "general@moorelife.org";
$website = "http://www.flcsarasota.org";
}
// if the record IS from the road...
if ($originalevent["NonFlc"] == 1) {
$venue = $originalevent["Location"];
if ($originalevent["Pastors"]) $pastors = $originalevent["Pastors"];
$street = $originalevent["Address"];
$city = $originalevent["City"];
$state = $originalevent["State"];
$zip = substr($originalevent["Zip"], 0, -2);
$map = "http://maps.google.com/maps?q=" . str_replace(" ", "+", $originalevent["Location"]) . "+" . str_replace(" ", "+", $originalevent["City"]) . "+" . $originalevent["State"] . "+" . substr($originalevent["Zip"], 0 ,-2);
if ($originalevent["Phone"]) $phone = "+1-" . substr($originalevent["Phone"], 1, 3) . "-" . substr($originalevent["Phone"], -8);
if ($originalevent["Email"]) $email = $originalevent["Email"];
if ($originalevent["WebAddress"]) $website = $originalevent["WebAddress"];
}
$date = date("Y-m-d", strtotime($originalevent["Date"]));
if ($originalevent["Time"]) $date = date("c", strtotime(substr($originalevent["Date"], 0, -13) . $originalevent["Time"]));
// execute the actual insertion of new events
$putprocessedevent->execute(array(":title" => $title, ":speaker" => $speaker, ":venue" => $venue, ":pastors" => $pastors, ":street" => $street, ":city" => $city, ":state" => $state, ":zip" => $zip, ":map" => $map, ":phone" => $phone, ":email" => $email, ":website" => $website, ":date" => $date));
}
// kill the last record of the array
unset($originalevent);
// get events from the temporary events database
$getprocessedtitles = "SELECT DISTINCT Title, MIN(EventsID) FROM dbo.Events GROUP BY Title ORDER BY MIN(EventsID)";
$processedtitles = $dbh->prepare($getprocessedtitles);
$processedtitles->execute();
// create an array using names instead of keys ($originalevent["Location"] instead of $originalevent[1])
$processedtitles->setFetchMode(PDO::FETCH_ASSOC);
// for every record that the new query produces...
foreach ($processedtitles as $processedtitle) {
$eventtitle = $processedtitle["Title"];
?>
<h2><?php echo $eventtitle; ?></h2>
<dl>
<dt>Speakers</dt>
<?php
// get dates from the temporary events database
$getprocessedspeakers = "SELECT DISTINCT Speaker, MIN(EventsID) FROM dbo.Events WHERE Title LIKE '%" . $eventtitle . "%'GROUP BY Speaker ORDER BY MIN(EventsID)";
$processedspeakers = $dbh->prepare($getprocessedspeakers);
$processedspeakers->execute();
// create an array using names instead of keys ($originalevent["Location"] instead of $originalevent[1])
$processedspeakers->setFetchMode(PDO::FETCH_ASSOC);
foreach ($processedspeakers as $processedspeaker) {
$eventspeaker = $processedspeaker["Speaker"];
?>
<dd><?php echo $eventspeaker; ?></dd>
<?php
}
?>
</dl>
<h3>Venue Information</h3>
<dl>
<?php
// get dates from the temporary events database
$getprocessedinfo = "SELECT Venue, Pastors, Street, City, State, Zip, Map, Phone, Email, Website FROM dbo.Events WHERE Title LIKE '%" . $eventtitle . "%'";
$processedinfo = $dbh->prepare($getprocessedinfo);
$processedinfo->execute();
// create an array using names instead of keys ($originalevent["Location"] instead of $originalevent[1])
// I used $processedinfo = $processedinfo->fetch(PDO::FETCH_ASSOC); instead of $processedtitles->setFetchMode(PDO::FETCH_ASSOC); so that I wouldn't have to do a separate array (print_r($processedtitles); shows the actual query and not the results of the query)
$processedinfo = $processedinfo->fetch(PDO::FETCH_ASSOC);
$eventvenue = $processedinfo["Venue"];
$eventpastors = $processedinfo["Pastors"];
$eventstreet = $processedinfo["Street"];
$eventcity = $processedinfo["City"];
$eventstate = $processedinfo["State"];
$eventzip = $processedinfo["Zip"];
$eventmap = $processedinfo["Map"];
$eventphone = $processedinfo["Phone"];
$eventemail = $processedinfo["Email"];
$eventwebsite = $processedinfo["Website"];
?>
<dt>Venue</dt>
<dd><?php echo $eventvenue; ?></dd>
<dt>Pastors</dt>
<dd><?php echo $eventpastors; ?></dd>
<dt>Street</dt>
<dd><?php echo $eventstreet; ?></dd>
<dt>City</dt>
<dd><?php echo $eventcity; ?></dd>
<dt>State</dt>
<dd><?php echo $eventstate; ?></dd>
<dt>Zip</dt>
<dd><?php echo $eventzip; ?></dd>
<dt>Map</dt>
<dd><?php echo $eventmap; ?></dd>
<dt>Phone</dt>
<dd><?php echo $eventphone; ?></dd>
<dt>Email</dt>
<dd><?php echo $eventemail; ?></dd>
<dt>Website</dt>
<dd><?php echo $eventwebsite; ?></dd>
</dl>
<h3>Event Dates</h3>
<ol>
<?php
// get dates from the temporary events database
$getprocesseddates = "SELECT Date FROM dbo.Events WHERE Title LIKE '%" . $eventtitle . "%'";
$processeddates = $dbh->prepare($getprocesseddates);
$processeddates->execute();
// create an array using names instead of keys ($originalevent["Location"] instead of $originalevent[1])
$processeddates->setFetchMode(PDO::FETCH_ASSOC);
// for every record that the new query produces...
foreach ($processeddates as $processeddate) {
$eventdate = $processeddate["Date"];
?>
<li><?php echo $eventdate; ?></li>
<?php
}
// kill the last record of the array
unset($processeddate);
?>
</ol>
<?php
}
// kill the last record of the array
unset($processedtitle);
// kill the database connection
$dbh = null;
}
catch(PDOException $e) {
echo $e->getMessage();
}
?>
</body>
</html>
结果呈现HTML ...
Events & Meetings
KCM Branson Victory Campaign 2013
Speakers
Kenneth Copeland
Gloria Copeland
Venue Information
Venue
Faith Life Church
Pastors
Keith & Phyllis Moore
Street
3701 State Highway 76
City
Branson
State
MO
Zip
65616
Map
http://maps.google.com/maps?q=Faith+Life+Church+Branson+MO+65616
Phone
+1-417-334-9233
Email
general@moorelife.org
Website
http://www.flcbranson.org
Event Dates
1. 2013-03-07T19:00:00-06:00
2. 2013-03-08T14:00:00-06:00
3. 2013-03-08T19:00:00-06:00
4. 2013-03-08T09:00:00-06:00
5. 2013-03-09T09:30:00-06:00
Victory Family Church
Speakers
Keith Moore
Venue Information
Venue
Victory Family Church
Pastors
John & Michelle Nuzzo
Street
21150 Route 19
City
Cranberry Township
State
PA
Zip
16066
Map
http://maps.google.com/maps?q=Victory+Family+Church+Cranberry+Township+PA+16066
Phone
+1-724-453-6200
Email
general@moorelife.org
Website
http://www.lifeatvictory.com
Event Dates
1. 2013-08-19T19:00:00-05:00
2. 2013-08-20T19:00:00-05:00
3. 2013-08-21T19:00:00-05:00
也许这种体验会帮助别人。让我开始工作已经花了将近一年的时间（一次又一次）。随意张贴可以使其更清洁或更容易的东西。