How to increase a DIV ID counter within PHP

[CDFTim]

I'm back with another question about a rotating Marquee.
I have a marquee that rotates information through a window on my web page.
With your help here I have figured out a bunch and have it working, Almost.
I have to read data into a <DIV> statement and Echo out a table structure. then save that file that is a page of filled in data areas. I finally did that.
But, to have the marquee show different photos and information it reads the data with in the various <Div>'s.
Now my problem is I need to increase the DIV ID# by one each time the data is read through the DO WHILE statement is working.
the output is like this.....

<div id="billboard0" class="billcontent">the data area I have working</div>
<div id="billboard0" class="billcontent">the data area that I have working now</div>

Do you see the ID="billboard0"
I need to increase the ID by 1 starting at number 0
To This.....
<div id="billboard0" class="billcontent">the data area I have working</div>
<div id="billboard1" class="billcontent">the data area I have working now</div>
<div id="billboard2" class="billcontent">the data area I have working</div>
<div id="billboard3" class="billcontent">the data area I have working now</div>

thanks for any help

[MarkoKlacar]

Hi,

Wll the obvious answer would be to have a counter wehn you create you <DIV>'s.
Not sure how you code for doing this looks but it should be a start if I understood the question correctly.

MK

[Markus]

Just a psuedo code:
[php]
function buildDivs($_amount)
{
for( $_i = 0; $_i <= $_amount; ++$_i)
{
echo "<div id=\"$_i\">Div id = $_i</div>";
}
}

echo buildDivs(10);
[/php]

Just to help you with the ideology with incrementing..

If you post the code you were helped with before (we're not psychic) we could help you again :)

[CDFTim]

I can not post the code from before because its all jumbled up with all the echo's.
But I do appreciate this and will try it out. I figured that I would have to do it this way, but knew I would not know where to start.

Here is a Newbie question. I try to read code out of books and articles and would like to know what exactly do these mean.

Something like this ....

$this ->template_dir = Template_dir;
$page -> display('index.pl');
$result = $this -> db -> getone($queryString);

What does the "->" mean?

how about this.....

if (DB :: isError($result))

------- This has two COLONS together in the line.
What do the two colons together mean?

And when is it that you use two == signs together ? I have seen statements with a combinatin of single and double = signs in the same statement.

and this one.....

if (!($userfile_type =="image/pjpeg" OR $userfile_type == "image/jpeg" OR $userfile_type == "image/gif" OR $userfile_type == "image/pjpg" OR $userfile_type == "image/jpg"))

I found this one and used it. I had added to it and now it works for me. All those OR's may not be needed. But since it works I do not want to play with it.
However, what does that .... if ( ! ($userfile etc etc mean ??? The exclamation point.?

Thanks for your help. and I will be grading this test ..........

[Markus]

I can not post the code from before because its all jumbled up with all the echo's.
But I do appreciate this and will try it out. I figured that I would have to do it this way, but knew I would not know where to start.

Here is a Newbie question. I try to read code out of books and articles and would like to know what exactly do these mean.

Something like this ....

$this ->template_dir = Template_dir;
$page -> display('index.pl');
$result = $this -> db -> getone($queryString);

What does the "->" mean?

how about this.....

if (DB :: isError($result))

------- This has two COLONS together in the line.
What do the two colons together mean?

And when is it that you use two == signs together ? I have seen statements with a combinatin of single and double = signs in the same statement.

and this one.....

if (!($userfile_type =="image/pjpeg" OR $userfile_type == "image/jpeg" OR $userfile_type == "image/gif" OR $userfile_type == "image/pjpg" OR $userfile_type == "image/jpg"))

I found this one and used it. I had added to it and now it works for me. All those OR's may not be needed. But since it works I do not want to play with it.
However, what does that .... if ( ! ($userfile etc etc mean ??? The exclamation point.?

Thanks for your help. and I will be grading this test ..........

To the last point you ask, if statements return TRUE or FALSE.

[php]
$x = 0;
$y = 0;
if($x == $y){ // if x is equal to y -- returns true
// do code
}
/* if you wanted to check whether something returned false, you wou;d add an exclamation mark: */

function somefunction(){
return false;
}

if(!$somefunction){
echo "function returned false!";
} else {
echo "function returned true";
}
[/php]
Sorry, i have to get going!

[dlite922]

What does the "->" mean?

That is used for accessing an object's functions or data members (learn classes and it will make sense)

if (DB :: isError($result))
 

------- This has two COLONS together in the line.
What do the two colons together mean?

:: is like -> but for accessing public static members or functions.

in your example DB is a class, isError() is a public method of that class.

And when is it that you use two == signs together ? I have seen statements with a combinatin of single and double = signs in the same statement.

== is a comparison operator. checks if something is equal to something else

= is an assignment operator. takes the value of the right hand and puts it into the left hand value.

and this one.....

 
if (!($userfile_type =="image/pjpeg" OR $userfile_type == "image/jpeg" OR $userfile_type == "image/gif" OR $userfile_type == "image/pjpg" OR $userfile_type == "image/jpg"))
 
 

I found this one and used it. I had added to it and now it works for me. All those OR's may not be needed. But since it works I do not want to play with it.
However, what does that .... if ( ! ($userfile etc etc mean ??? The exclamation point.?

The if statement checks to see if the variable $userfile_type is any of the PHP defined image types, jpg, or gif basically, but PHP defines those multiple ways, hence you have 5 comparison.

! means the opposite. it negates the value after it example: "!True" equals false.

OR (also written as two bars || ) means any of those matches.
[PHP]
if (a == b || a ==c)
{
// this executes if a equals b OR a == c. obviously if a equals b, it doesn't bother comparing it with C (the logic shortcut).
}
[/PHP]


All of the above answers are readily available from google and php.net.

Try to figure this logic out just for your practice:

[PHP]

function checkGoogle($Q)
{
return $found;
}

if(checkGoogle($YourQ) == TRUE)
{
echo "Good Job!";
}
else
{
echo "Ask the people at TSDN";
}


[/PHP]

[CDFTim]

Ok now I am back working on my <DIV> and as you recall from above I want to increase the DIV id=Name0 by one each time the Do.. While loop works its way through.
However....... Instead of ECHO-ing out each HTML line I used dreamweaver and inserted the Database item encased in a PhP tag into the HTML table where it should show up.
So it looks like this....

<?php  Do {  ?>
<div id="billboard0" class="billcontent">
<td><table width="176" border="0" cellspacing="0" cellpadding="0">
    <tr>
 <td width="104" class="rotatorprice"><?php echo $row_mlsdata1['price']; ?>
      </td>
<td width="72" nowrap class="rotatorinfotext"><b>MLS#:</b><?php echo $row_mlsdata1['mlsnumber']; ?>
       </td>
            </tr>
             </table>       </td>
</div>
 <?php } while ($row_mlsdata1 = mysql_fetch_assoc($mlsdata1)); ?>
 

So with each do while loop I need the id name to increase by one...
<div id="billboard1" class="billcontent">the data area I have working now</div>
<div id="billboard2" class="billcontent">the data area I have working</div>
<div id="billboard3" class="billcontent">the data area I have working now</div>


I tried to use what you showed be above and try to place the Variable into the Div id name. But probably am not doing it correctly.

    <?php do { 
 
function buildDivs($_amount)
 {
for( $_i = 0; $_i <= $_amount; ++$_i)
 }
 echo buildDivs(10);
 ?>
   <div id=\"billboard\"<?php $_i ?>\" class="billcontent">;
<table border="0" cellspacing="0" cellpadding="1">
              <tr>
                <td bgcolor="#000000"><img src="/images/listings/<?php echo $row_mlsdata1['picture']; ?>" width=174 height=130 border="0"></td>
                </tr>
              </table>     
</Div>
<?php } while ($row_mlsdata1 = mysql_fetch_assoc($mlsdata1)); ?>
 
 

But this does not work.....