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PHP and damn numbers... PHP and damn numbers...
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  #1 (permalink)  
Old 04-01-2005, 10:36 AM
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Default PHP and damn numbers...
ok... so I don't have the greatest coding method I'm sure, but here's what I got. I'm displaying a catalog, named "DealerName1, Dealername2" etc. Clicking next brings you to the next page... but I'm trying to make it so that if it's an 8 page catalog it won't let you click to page 9 or a 16 page catalog clicking to page 17... (and not go back to page negative 1) so here's the code...

Code:
<?php
 $dealername = "fuccillo";
 $NumPages = 8;
 ?>
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title><?php echo $dealername ?></title>
<link href="style.css" rel="stylesheet" type="text/css">
</head>

<body>
	<table width="700" border="0" cellspacing="0" cellpadding="0" align="LEFT" valign="TOP">
		<tr>
		<td></td>
			<td>
				<table border="0" cellspacing="0" cellpadding="0">
				<tr><td height="10" colspan="5"></td></tr>
				<tr>
				</tr>
				
 <?
 if (isset($_GET['PageNum']))	{
	$setnum = $_GET['PageNum'];
		
		
?>

				
					<td align="left" width="10">[img]images/backArrow.gif[/img]</td>
					<td align="left"><a class="redlink" href="index.php?PageNum=
					<? $setnum = $setnum-1; 
						if ($setnum > 1) {
							echo "";
							} elseif ($setnum >= 0) {
							echo "";
							} else {
					echo $setnum; 
					}
					?>"> BACK <? echo $setnum; ?></a></td> 
					<td align="center">VIEW AS PDF</td>
					<td align="right"><a class="redlink" href="index.php
						<? if ($setnum >= 9) {
								echo ""; 
								} else {
					 $setnum = $setnum+1; } echo "?PageNum="; echo $setnum ?>">NEXT </a></td>
					<td width="10">[img]images/nextArrow.gif[/img]</td>
					<tr>
					<td height="5" colspan="5"></td>
					</tr>
					<tr>
					
						<td align="center" colspan="5">
							<script>
							document.write("[img]images/<?php echo $dealername ?><?php $setnum = $setnum-1; echo $setnum ?>.jpg?"+Math.random()+"[/img]")
							</script>

						</td>
					</tr>
				</table>
				<? } else { ?>
				
					<td width="10">[img]images/backArrow.gif[/img] </td>
					<td align="left" class="regularGrey">BACK</td> 
					<td align="center" class="regularGrey">VIEW AS PDF</td>
					<td align="right">NEXT </td>
					<td width="10">[img]images/nextArrow.gif[/img]</td>
				
				</tr>
				<tr>
					<td height="5" colspan="5"></td>
					</tr>
					<tr>
					
						<td align="center" colspan="5">
							<script>
							document.write("[img]images/salesflyer.jpg?"+Math.random()+"[/img]")
							</script>

						</td>
					</tr>
				</table>
			<? } ?>
			</td>
			<td>[img]images/clearpixel.gif[/img]</td>
			<td align="left" width="250" valign="top">
			
			<table width="250" border="0" cellspacing="0" cellpadding="0" valign="top">
				<tr>
					<td height="1">[img]images/clearpixel.gif[/img]</td>
				</tr>
				<tr>
					<td width="250" height="61" valign="top">[img]images/instruct.gif[/img]</td>
				</tr>
				<tr>
					<td class="regularsm">
					<? include_once "nav.php"; ?>
					</td>
				</tr>
			</table>                                                                                                                                                 
			
			</td>
		</tr>
		<tr>
			
			
		</tr>
		
	</table>
</body>
</html>
The "Back" snippet seems to work... but I can't seem to get the "Next" to work correctly... and I know that my $NumPages = 8; isn't actually doing anything at this second, trying to make it work with with hardcoded number before I use that... any help is appreciated
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Old 04-01-2005, 10:49 AM
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You are checking the value of $setnum before you add 1 to it. You are checking if it is >=9. If it's 8, it's not greater than or equal to 9, so it will add one. If you change that to >=8, when you're already at page 8, it won't add one, if you're before page 8, it will add one. That's how it looks to me anyway.
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Old 04-01-2005, 11:26 AM
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Default code
matty t... replace lines 1 through 46 with this

Code:
<?php 
 $dealername = "fuccillo"; 
 $numpages = 8; 
 ?> 
  
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> 
<title><?php echo $dealername ?></title> 
<link href="style.css" rel="stylesheet" type="text/css"> 
</head> 

<body> 
   <table width="700" border="0" cellspacing="0" cellpadding="0" align="LEFT" valign="TOP"> 
      <tr> 
      <td></td> 
         <td> 
            <table border="0" cellspacing="0" cellpadding="0"> 
            <tr><td height="10" colspan="5"></td></tr> 
            <tr> 
            </tr> 
			<? 
			if (isset($_GET['PageNum']))   
			{ 
			  $setnum = $_GET['PageNum'];   
			?> 
               <td align="left" width="10">[img]images/backArrow.gif[/img]</td> 
               <td align="left"><? if(($setnum-1)>=1){?>BACK<? } ?></td> 
               <td align="center">VIEW AS PDF</td> 
               <td align="right"><? if(($setnum+1)<=$numpages){?>NEXT<? } ?></td> 
               <td width="10">[img]images/nextArrow.gif[/img]</td> 
               <tr> 
               <td height="5" colspan="5"></td> 
               </tr> 
               <tr> 
                
                  <td align="center" colspan="5"> 
                     <script> 
                     document.write("[img]images/<?php echo $dealername ?><?php $setnum = $setnum-1; echo $setnum ?>.jpg?"+Math.random()+"[/img]") 
                     </script> 

                  </td> 
               </tr> 
            </table> 
            <? } else { ?>
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Old 04-01-2005, 12:05 PM
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Yeah, that does make more sense.
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Old 04-01-2005, 02:27 PM
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ok... that works for the most part... but there seems to be another problem...when you are on page number 1 the url reads http://web2.knowtechnology.net/Clients/FEGB/index.php?PageNum=1 BUT the view as pdf is of the second pdf, and the link to the next page is to page 3 not 2, upon clicking that link everything seems to straighten out but at then the images are a number behind...
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Old 04-01-2005, 02:37 PM
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I just looked at that page and the numbers looked right to me... I assume you fixed it?
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Old 04-01-2005, 02:42 PM
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nope... page 8 is supposed to be a corvette... not the service page (that's page 7)
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Old 04-01-2005, 02:49 PM
subsurfaced.com
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Default doh
you were defining to many setnum's that included additon and subtraction. also you really didn't nead pagenum. use the code below. seems to work fine... not 100% sure about images as they obviously don't resolve on my local web.

Code:
<?php 
 $dealername = "fuccillo"; 
 $numpages = 8; 
 ?> 
  
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> 
<title><?php echo $dealername ?></title> 
<link href="style.css" rel="stylesheet" type="text/css"> 
</head> 

<body> 
   <table width="700" border="0" cellspacing="0" cellpadding="0" align="LEFT" valign="TOP"> 
      <tr> 
      <td></td> 
         <td> 
            <table border="0" cellspacing="0" cellpadding="0"> 
            <tr><td height="10" colspan="5"></td></tr> 
            <tr> 
            </tr> 
			<? 
			if (isset($_GET['setnum']))   
			{ 
			  $setnum = $_GET['setnum'];   
			?> 
               <td align="left" width="10">[img]images/backArrow.gif[/img]</td> 
               <td align="left"><? if(($setnum-1)>=1){?>BACK<? } else { ?>BACK<? } ?></td> 
               <td align="center">VIEW AS PDF</td> 
               <td align="right"><? if(($setnum+1)<=$numpages){?>NEXT<? } ?></td> 
               <td width="10">[img]images/nextArrow.gif[/img]</td> 
               <tr> 
               <td height="5" colspan="5"></td> 
               </tr> 
               <tr> 
                
                  <td align="center" colspan="5"> 
                     <script> 
                     document.write("[img]images/<?php echo $dealername ?><?php echo $setnum ?>.jpg?"+Math.random()+"[/img]") 
                     </script> 

                  </td> 
               </tr> 
            </table> 
            <? } else { ?> 
             
               <td width="10">[img]images/backArrow.gif[/img] </td> 
               <td align="left" class="regularGrey">></td> 
               <td align="center" class="regularGrey">VIEW AS PDF</td> 
               <td align="right">NEXT </td> 
               <td width="10">[img]images/nextArrow.gif[/img]</td> 
             
            </tr> 
            <tr> 
               <td height="5" colspan="5"></td> 
               </tr> 
               <tr> 
                
                  <td align="center" colspan="5"> 
                     <script> 
                     document.write("[img]images/salesflyer.jpg?"+Math.random()+"[/img]") 
                     </script> 

                  </td> 
               </tr> 
            </table> 
         <? } ?> 
         </td> 
         <td>[img]images/clearpixel.gif[/img]</td> 
         <td align="left" width="250" valign="top"> 
          
         <table width="250" border="0" cellspacing="0" cellpadding="0" valign="top"> 
            <tr> 
               <td height="1">[img]images/clearpixel.gif[/img]</td> 
            </tr> 
            <tr> 
               <td width="250" height="61" valign="top">[img]images/instruct.gif[/img]</td> 
            </tr> 
            <tr> 
               <td class="regularsm"> 
               <? include_once "nav.php"; ?> 
               </td> 
            </tr> 
         </table>                                                                                                                                                  
          
         </td> 
      </tr> 
      <tr> 
          
          
      </tr> 
       
   </table> 
</body> 
</html>
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Old 04-01-2005, 02:52 PM
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Ooops, wasn't looking at the image file names...

Code:
                     <script>
                     document.write("[img]images/<?php echo $dealername ?><?php $setnum = $setnum-1; echo $setnum ?>.jpg?"+Math.random()+"[/img]")
You are subtracting one from $setnum for each image. Remove this:

Code:
$setnum = $setnum-1;
That should do it.

edit: Damn, too slow.
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Old 04-01-2005, 04:07 PM
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sweet! Thanks you guys... works like a charm now
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