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POPagination doesn't work
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  1. POPagination doesn't work
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    copied!<pre><code>&lt;html&gt; &lt;head&gt; &lt;title&gt;PHP test&lt;/title&gt; &lt;link href="style.css" rel="stylesheet" type="text/css"&gt; &lt;/head&gt; &lt;body&gt; &lt;div id="formDiv"&gt; &lt;form action="testphp.php" method="post"&gt; Email: &lt;input type="text" name="email"&gt;&lt;br&gt; &lt;textarea name="comment" rows="10" cols="40"&gt;Your comment here.&lt;/textarea&gt; &lt;input type="submit" value="submit"&gt; &lt;/form&gt; &lt;div id="show"&gt; &lt;?php $con=mysqli_connect("","root","","my_db"); // Check connection if (mysqli_connect_errno()) { echo "Failed to connect to MySQL: " . mysqli_connect_error(); } $result = mysqli_query($con,"SELECT * FROM Comments"); echo "&lt;table border='1'&gt; &lt;tr&gt; &lt;th&gt;Email&lt;/th&gt; &lt;th&gt;Comment&lt;/th&gt; &lt;/tr&gt;"; while($row = mysqli_fetch_array($result)) { echo "&lt;tr&gt;"; echo "&lt;td&gt;" . $row['Email'] . "&lt;/td&gt;"; echo "&lt;td&gt;" . $row['comment'] . "&lt;/td&gt;"; echo "&lt;/tr&gt;"; } echo "&lt;/table&gt;"; mysqli_close($con); ?&gt; &lt;/div&gt; &lt;/div&gt; &lt;?php $con=mysqli_connect("","root","","my_db"); if($_SERVER["REQUEST_METHOD"] == "POST") { if(empty($_POST["comment"])) {echo "You have to write something. &lt;br&gt;"; echo "&lt;meta http-equiv=\"refresh\" content=\"2;URL=testphp.php\"&gt;"; } else { if (mysqli_connect_errno()) { echo "Failed to connect to MySQL: " . mysqli_connect_error(); } if(empty($_POST["email"])) { $sql="INSERT INTO Comments (Email, comment) VALUES ('$_POST[email]', '$_POST[comment]')"; //echo "1 record added."; echo "&lt;meta http-equiv=\"refresh\" content=\"2;URL=testphp.php\"&gt;"; if (!mysqli_query($con,$sql)) { die('Error: ' . mysqli_error($con)); } } else{ if (!preg_match("/([\w\-]+\@[\w\-]+\.[\w\-]+)/",$_POST["email"])) { echo "Invalid email format &lt;br&gt;"; echo "&lt;meta http-equiv=\"refresh\" content=\"2;URL=testphp.php\"&gt;"; } else{ $sql="INSERT INTO Comments (Email, comment) VALUES ('$_POST[email]', '$_POST[comment]')"; echo "&lt;meta http-equiv=\"refresh\" content=\"2;URL=testphp.php\"&gt;"; if (!mysqli_query($con,$sql)) { die('Error: ' . mysqli_error($con)); } } } } } $db = mysql_selectdb('my_db', $con) or trigger_error("SQL", E_USER_ERROR); //number of rows in table $sql = "SELECT COUNT (*) FROM Comments"; $result = mysql_query($sql, $con) or trigger_error("SQL", E_USER_ERROR); $r = mysql_fetch_row($result); $numRows = $r[0]; //number of rows to show per page $rowsPerPage = 10; $totalPages = ceil($numRows/$rowsPerPage); //get current page or set default if(isset($_GET['currentpage']) &amp;&amp; is_numeric($_GET['currentpage'])){ $currentpage = (int) $_GET['currentpage']; } else{ $currentpage = 1; } if($currentpage &gt; $totalPages){ $currentpage = $totalPages; } if($currentpage &lt; 1){ $currentpage = 1; } $offset = ($currentpage - 1) * $rowsPerPage; //get info from DB $sql = "SELECT comment FROM Comments LIMIT $offset, $rowsPerPage"; $result = mysql_query($sql, $con) or trigger_error("SQL", E_USER_ERROR); while($list = mysql_fetch_assoc($result)){ echo $list['comment']; echo "&lt;br /&gt;"; } //build pagination links if($currentpage &gt; 1){ echo " &lt;a href='{$_SERVER['PHP_SELF']}?currentpage=1'&gt;&lt;&lt;&lt;/a&gt; "; $prevpage = $currentpage - 1; echo " &lt;a href='{$_SERVER['PHP_SELF']}?currentpage=$prevpage'&gt;&lt;&lt;/a&gt; "; } $range = 3; for ($x = ($currentpage - $range); $x &lt; (($currentpage + $range) + 1); $x++) { // if it's a valid page number... if (($x &gt; 0) &amp;&amp; ($x &lt;= $totalpages)) { // if we're on current page... if ($x == $currentpage) { // 'highlight' it but don't make a link echo " [&lt;b&gt;$x&lt;/b&gt;] "; // if not current page... } else{ echo " &lt;a href='{$_SERVER['PHP_SELF']}?currentpage=$x'&gt;$x&lt;/a&gt; "; } } } if($currentpage != $totalpages){ $nextpage = $currentpage + 1; echo " &lt;a href='{$_SERVER['PHP_SELF']}?currentpage=$nextpage'&gt;&gt;&lt;/a&gt; "; echo " &lt;a href='{$_SERVER['PHP_SELF']}?currentpage=$totalpages'&gt;&gt;&gt;&lt;/a&gt; "; } ?&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>That's my code, I got the pagination code from another site and tried to change it to suit my needs but I can't make it work. I get this warning for this line of code </p> <pre><code>$db = mysql_selectdb('my_db', $con) or trigger_error("SQL", E_USER_ERROR);) Warning: mysql_selectdb() expects parameter 2 to be resource. </code></pre> <p>This is my first time programming in php and I've tried every bit of code on pagination but it just doesn't work...</p>
 

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