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POWhat is wrong with my pagination?
 

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  1. POWhat is wrong with my pagination?
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    <p>I am working on a site on which news is split in to different pages, I already have some PHP code for this but this doesn't seem to work correctly. The news on my site is split correctly, but when there are only enough messages for one page, the "next" button still pops up and you can scroll through empty pages. I am relatively new to PHP so I couldn't quite come up with a solution for this, hopefully someone here can help. </p> <p>Here is the code:</p> <pre><code>else { $conn = mysql_connect($host, $user, $pass); if(! $conn ) { die('Could not connect: ' . mysql_error()); } mysql_select_db('nieuws'); $rec_limit = 3; $sql = "SELECT count(id) FROM updates "; $retval = mysql_query( $sql, $conn ); if(! $retval ) { die('Could not get data: ' . mysql_error()); } $row = mysql_fetch_array($retval, MYSQL_NUM ); $rec_count = $row[0]; if( isset($_GET{'page'} ) ) { $page = $_GET{'page'} + 1; $offset = $rec_limit * $page ; } else { $page = 0; $offset = 0; } $left_rec = $rec_count - ($page * $rec_limit); $sql = "SELECT id, titel, inleiding, bericht, datum ". "FROM updates ". "LIMIT $offset, $rec_limit"; $retval = mysql_query( $sql, $conn ); if(! $retval ) { die('Could not get data: ' . mysql_error()); } echo "&lt;hr&gt;"; while($row = mysql_fetch_array($retval, MYSQL_ASSOC)) { $intro = substr($row['bericht'], 0, 330); echo '&lt;b style="font-size:18px;font-family:Arial,Helvetica,sans-serif;color:#2B2B2B;"&gt;'.htmlspecialchars(stripslashes($row['titel'])).'&lt;/b&gt; &lt;br&gt; '. '&lt;i style="font-size:13px;"&gt;'.htmlspecialchars(stripslashes($row['datum'])).'&lt;/i&gt;&lt;br&gt;&lt;br&gt; '. "{$row['inleiding']}". '... &lt;a href="'.$_SERVER['PHP_SELF'].'?id='.$row['id'].'"&gt;Lees verder&lt;/a&gt;&lt;br&gt;&lt;br&gt;&lt;br&gt;'; echo '&lt;hr&gt;'; } if( $page &gt; 0 ) { $last = $page - 2; echo "&lt;a style=\"margin-left:0px;\"href=\"{$_SERVER['PHP_SELF']}?page=$last\"&gt;Vorige&lt;/a&gt;"; echo "&lt;a style=\"margin-left:645px;\" href=\"{$_SERVER['PHP_SELF']}?page=$page\"&gt;Volgende&lt;/a&gt;"; } else if( $page == 0 ) { echo "&lt;a style=\"margin-left:685px;\" href=\"{$_SERVER['PHP_SELF']}?page=$page\"&gt;Volgende&lt;/a&gt;"; } else if( $left_rec &lt; $rec_limit ) { $last = $page - 2; echo "&lt;a style=\"margin-left:0px;\" href=\"{$_SERVER['PHP_SELF']}?page=$last\"&gt;Vorige&lt;/a&gt;"; } echo '&lt;br&gt;&lt;br&gt;&lt;br&gt;'; </code></pre>
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    1. PTQuestion
    1. USThakkennes
    1. USThakkennes
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    1. COcreate a variable to store the total number of pages, which would be the total records divided by the number shown per page. ceil() the result to get that number, then you can test if ($pages > 1) to decide whether to show the "next" button or not.
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      1. POWhat is wrong with my pagination?
      1. USgunnx
    2. COIn addition to the comment above mine, after you store the total num of pages in variable, check if the current page is greater than your total pages - if so, display error, or just point your current page to be equal to 1.
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      1. POWhat is wrong with my pagination?
      1. USStanislav
    3. COYou need to add some code to check whether you need to pop up a `next` button - at the moment, you're always printing it out. You could try retrieving four records, and printing three out - if there's another record in your recordset at that point, you need to print a `next` button.
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      1. POWhat is wrong with my pagination?
      1. USandrewsi
 

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