Empty variable

I'm trying to figure out why $line['total1'] is empty when echo'd back?

$query = "select author_name, count(*) as total, 1 as type
from `posts` 
where from_unixtime(post_date) >=" . "'" . $startdate . "'" .
"and from_unixtime(post_date) <" . "'" . $enddate . "'" . 
"and new_topic = 0
group by author_name
union
select starter_name, count(*) as total1, 2 as type
from `topics`
where from_unixtime(start_date) >=" . "'" . $startdate . "'" .
"and from_unixtime(start_date) <" . "'" . $enddate . "'" . 
"group by starter_name
order by total desc";
$result = mysql_query($query) or die('Query failed: ' . mysql_error());

//Create the result set
while ($line= mysql_fetch_array($result))
	 {
	echo "Username: " .  $line['author_name'];
	echo "</br>";
	echo "Threads: " .  $line['total1'];
	echo "</br>";
	echo "Posts: " .  $line['total'];
	echo "</br>";
	echo "Overall Points: " .  (($line['total'] * $posts) + ($line2['total1'] * $topics));
	echo "</br>";
	echo "</br>";
	echo $line['total1'];
	}

Open in new window

LVL 12
Nathan RileyFounderAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

HainKurtSr. System AnalystCommented:
select 10 as total
union
select 20 as total1

>>>>

total
10
20

the name from first query will be used to name columns... there wont be a new column...

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
HainKurtSr. System AnalystCommented:
and use

if $line['type']=="1" echo "Threads: " . $line['total'];
if $line['type']=="2" echo "Posts: " . $line['total'];

instead of line 21-22-23
Nathan RileyFounderAuthor Commented:
I tried, but I get the same number for posts and topics.

Code Changed:
$query = "select author_name, count(*) as total, 1 as type
from `posts` 
where from_unixtime(post_date) >=" . "'" . $startdate . "'" .
"and from_unixtime(post_date) <" . "'" . $enddate . "'" . 
"and new_topic = 0
group by author_name
union
select author_name, count(*) as total, 2 as type
from `posts` 
where from_unixtime(post_date) >=" . "'" . $startdate . "'" .
"and from_unixtime(post_date) <" . "'" . $enddate . "'" . 
"and new_topic = 1
group by author_name
order by total desc";
$result = mysql_query($query) or die('Query failed: ' . mysql_error());

//Create the result set
while ($line= mysql_fetch_array($result))
	 {
	echo "Username: " .  $line['author_name'];
	echo "</br>";
	if ($line['type'] = "2")
	echo "Threads: " .  $line['total'];
	echo "</br>";
	if ($line['type'] = "1")
	echo "Posts: " .  $line['total'];
	echo "</br>";
	echo "Overall Points: " .  (($line['total'] * $posts) + ($line2['total1'] * $topics));
	echo "</br>";
	echo "</br>";
	echo $line['total1'];;
	}

Open in new window

IT Pros Agree: AI and Machine Learning Key

We’d all like to think our company’s data is well protected, but when you ask IT professionals they admit the data probably is not as safe as it could be.

HainKurtSr. System AnalystCommented:
you will get a result like

author_name total type
aaaa 100 1
bbbb 125 1
ccccc 256 2
dddd 342 2

Open in new window


first 2 will be posts, last 2 will be threads...

and I guess you should use == not =

if ($line['type'] == "1") echo "Posts: " .  $line['total'];
if ($line['type'] == "2") echo "Threads: " .  $line['total'];
echo "</br>";
Nathan RileyFounderAuthor Commented:
Strange, if I change to:

if ($line['type'] == "1")
	echo "Threads: " .  $line['total'];
	echo "</br>";
	if ($line['type'] == "2")
	echo "Posts: " .  $line['total'];

Open in new window


It ends up giving the the post count for threads and nothing for posts.
HainKurtSr. System AnalystCommented:
what about this

$query = "select author_name, 
       sum(case when new_topic = 0 then 1 else 0 end) post_total,
       sum(case when new_topic = 1 then 1 else 0 end) thread_total
from `posts` 
where from_unixtime(post_date) >=" . "'" . $startdate . "'" .
"and from_unixtime(post_date) <" . "'" . $enddate . "'" . 
group by author_name
order by total desc";

with above query you will get

author_name post_total thread_total
HainKurt  234 512
SomeOne 102 253

Open in new window


one query returns all data...
Nathan RileyFounderAuthor Commented:
All that data looks good that it returns, how would I modify my "if" statements then?
Nathan RileyFounderAuthor Commented:
Ah it eliminates it, got it working, thanks for all the help!
HainKurtSr. System AnalystCommented:
I did not look at query closely at first, thought they are getting data from different tables :)
With new query, you will get all data in same row, so you dot need if in your code...
Nathan RileyFounderAuthor Commented:
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
PHP

From novice to tech pro — start learning today.