Really need helps regarding Pagination with Sort

Posted on 16th Feb 2014 by admin

I need someone helps regarding pagination problem...i actually want to make my page limited to let say 50

so it will look like this

page1=0-50
page2=51-100

Then i want to sort let say based on the name of a person by giving <a href> and ORDER i can do the sort, but the problem occurs when i want to sort records on page 2, everything got messed up

Can anyone help me..below is the code:

<?php

$var2 =$_GET['title'] ;
$var3 =$_GET['field'] ;
$var4 =$_GET['country'] ;

$orderby = $_GET['orderby'];
if(empty($_GET['orderby'])){
$orderby="firstname";}

$sort=$_GET['sort'];
if(empty($_GET['sort'])){
$sort="DESC";}

if($sort=="DESC"){
$sort="ASC";}else
if($sort=="ASC"){
$sort="DESC";}


$trimmed2 = trim($var2); //trim whitespace from the stored variable
$trimmed3 = trim($var3);
$trimmed4 = trim($var4);

$table = "members";


$field_to_search2 = "title";
$field_to_search3 = "field";
$field_to_search4 = "country";


$query = "SELECT COUNT(*)FROM $table WHERE $field_to_search2 LIKE '%$trimmed2%'AND $field_to_search3 LIKE '%$trimmed3%' AND $field_to_search LIKE '%$trimmed%' AND $field_to_search4 LIKE '%$trimmed4%' ORDER BY $orderby $sort";

$result = mysql_query($query) or trigger_error("SQL", E_USER_ERROR);
$r = mysql_fetch_row($result);
$numrow = $r[0];

$rowsperpage = 100;
$totalpages = ceil($numrow / $rowsperpage);

if (isset($_GET['currentpage']) && is_numeric($_GET['currentpage'])) {

$currentpage = (int) $_GET['currentpage'];

} else {
$currentpage = 1;
}
if ($currentpage > $totalpages) {

$currentpage = $totalpages;
}
if ($currentpage < 1) {

$currentpage = 1;
}
$offset = ($currentpage - 1) * $rowsperpage;

$query5 = "SELECT * FROM $table WHERE $field_to_search2 LIKE '%$trimmed2%'AND $field_to_search3 LIKE '%$trimmed3%' AND $field_to_search LIKE '%$trimmed%' AND $field_to_search4 LIKE '%$trimmed4%' AND $field_to_search5 LIKE '%$trimmed5%' ORDER BY $orderby $sort";

$result5 = mysql_query($query5);
$count5 = mysql_num_rows($result5);

$query = "SELECT * FROM $table WHERE $field_to_search2 LIKE '%$trimmed2%'AND $field_to_search3 LIKE '%$trimmed3%' AND $field_to_search4 LIKE '%$trimmed4%'ORDER BY $orderby $sort LIMIT $offset, $rowsperpage";

$result = mysql_query($query) or trigger_error("SQL", E_USER_ERROR);

$count = mysql_num_rows($result);

$info = mysql_fetch_array($result);

$numresults=mysql_query($query);

$numrows=mysql_num_rows($numresults);
$mypage=$_SERVER['PHP_SELF'];


if ($numrows == 0 )


{



echo "<center><font face=arial size=2><p>Search </font>"."<font face=arial size=2> returned zero results</font></p></center>";

}



if (empty($s))

{

$s=0;

}


// get results

$result = mysql_query($query) or die("Couldn't execute query");



if($numrows > 1 ){$return = "results";}

else{ $return = "result"; }


echo "<center><table><tr><td><a href=page.php?title=$var2&field=$varx3&q=$var&country=$var4&campus=$var5&orderby=firstname&sort=$sort&search2=Find class=sort>Name</a></td><td width = 70 bgcolor=brown><a href=page.php?title=$var2&field=$var3&country=$var4&orderby=gender&sort=$sort&search2=Find class=sort>gender</a></td></tr></table></center>";



$count = $s + 1 ;

while ($r= mysql_fetch_array($result))

{

$gender = $r["gender"];
$firstname1 = $r["firstname"];

$field = $r["field"];
$country = $r["country"];

$count++ ;




echo "<center><table><tr><td>$firstname</td><td>$gender</td><td>$country</td></tr></table>";

}
$range = 5;

echo"<center>";
if ($currentpage > 1) {

$var2 =$_GET['title'] ;
$var3 =$_GET['field'] ;
$var4 =$_GET['country'] ;




echo " <a href='{$_SERVER['PHP_SELF']}?title=$var2&field=$var3&country=$var4&search2=Find&currentpage=1'><font face=verdana size=2>First</font></a><font face=verdana size=2> |</font>";
$prevpage = $currentpage - 1;
echo " <a href='{$_SERVER['PHP_SELF']}?title=$var2&field=$var3&country=$var4&search2=Find&currentpage=$prevpage'><font face=verdana size=2>Previous</font></a><font face=verdana size=2> | </font>";
}

for ($x = ($currentpage - $range); $x < ($currentpage + $range); $x++) {

if (($x > 0) && ($x <= $totalpages)) {

if ($x == $currentpage) {

echo "<font face=verdana size=2> [<b>$x</b>] </font>";


} else {

echo " <a href='{$_SERVER['PHP_SELF']}?title=$var2&field=$var3&country=$var4&search2=Find+resume&currentpage=$x'><font face=verdana size=2>$x</font></a> ";
}
}
}

if ($currentpage < $totalpages) {

$nextpage = $currentpage + 1;

echo "<font face=verdana size=2>|</font> <a href='{$_SERVER['PHP_SELF']}?title=$var2&field=$var3&country=$var4&search2=Find&currentpage=$nextpage'><font face=verdana size=2>Next</font></a><font face=verdana size=2> | </font>";

echo "<a href='{$_SERVER['PHP_SELF']}?title=$var2&field=$var3&country=$var4search2=Find&currentpage=$totalpages'><font face=verdana size=2>Last</font></a>";
}
echo"</center>";


?>

Thanks