MySQL PHP search with pagination
https://stackoverflow.com//questions/11700868
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im trying to implement a search for a project I'm currently working on. problem that im facing is when i go to the 2nd page seach result will be wrong.
here is the search form that is in my header.php
<form name="search" id="search" method="post" action="search.php">
<input type="text" tabindex="1" class="input" id="term" name="term" value=""/>
<input type="submit" tabindex="2" id="submit" value="SEARCH" />
Here is my search page php code
<?php include ('header.php');
$term = $_POST['term'];
$queryn = mysql_query("select * from scripts where title like '%$term%' or discription like '%$term%' and approved='1'") or die (mysql_error());
$search_num_rows = mysql_num_rows($queryn);
?>
<div class="cat_script_container">
<div class="nresults">Found <?php echo $search_num_rows;?> results for "<?php echo $term;?>"</div>
<?php
// How many adjacent pages should be shown on each side?
$adjacents = 3;
/*
First get total number of rows in data table.
If you have a WHERE clause in your query, make sure you mirror it here.
*/
//$query = "SELECT COUNT(*) as num FROM $tbl_name";
$query = "select COUNT(*) as num from scripts where title like '%$term%' or discription like '%$term%' and approved='1' order by script_id desc";
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages['num'];
/* Setup vars for query. */
//$targetpage = "category-$cr[cname]-$cid.html"; //your file name (the name of this file)
$catn = strtolower($cr['cname']); //Turn category name in to lowercase
$catn = preg_replace("![^a-z0-9]+!i", "-", $catn);
$limit = 2; //how many items to show per page
$page = $_GET['page'];
if($page)
$start = ($page - 1) * $limit; //first item to display on this page
else
$start = 0; //if no page var is given, set start to 0
/* Get data. */
$sql = "select * from scripts where title like '%$term%' or discription like '%$term%' and approved='1' order by script_id desc LIMIT $start, $limit";
$result = mysql_query($sql);
/* Setup page vars for display. */
if ($page == 0) $page = 1; //if no page var is given, default to 1.
$prev = $page - 1; //previous page is page - 1
$next = $page + 1; //next page is page + 1
$lastpage = ceil($total_pages/$limit); //lastpage is = total pages / items per page, rounded up.
$lpm1 = $lastpage - 1; //last page minus 1
/*
Now we apply our rules and draw the pagination object.
We're actually saving the code to a variable in case we want to draw it more than once.
*/
$pagination = "";
if($lastpage > 1)
{
$pagination .= "<div class=\"pagination\">";
//previous button
if ($page > 1)
$pagination.= "<a href=\"search-$prev.html\">« previous</a>";
else
$pagination.= "<span class=\"disabled\">« previous</span>";
//pages
if ($lastpage < 7 + ($adjacents * 2)) //not enough pages to bother breaking it up
{
for ($counter = 1; $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"search-$counter.html\">$counter</a>";
}
}
elseif($lastpage > 5 + ($adjacents * 2)) //enough pages to hide some
{
//close to beginning; only hide later pages
if($page < 1 + ($adjacents * 2))
{
for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"search-$counter.html\">$counter</a>";
}
$pagination.= "...";
$pagination.= "<a href=\"search-$lpm1.html\">$lpm1</a>";
$pagination.= "<a href=\"search-$lastpage.html\">$lastpage</a>";
}
//in middle; hide some front and some back
elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
{
$pagination.= "<a href=\"search-1.html\">1</a>";
$pagination.= "<a href=\"search-2.html\">2</a>";
$pagination.= "...";
for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"search-$counter.html\">$counter</a>";
}
$pagination.= "...";
$pagination.= "<a href=\"search-$lpm1.html\">$lpm1</a>";
$pagination.= "<a href=\"search-$lastpage.html\">$lastpage</a>";
}
//close to end; only hide early pages
else
{
$pagination.= "<a href=\"search-1.html\">1</a>";
$pagination.= "<a href=\"search-2.html\">2</a>";
$pagination.= "...";
for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"search-$counter.html\">$counter</a>";
}
}
}
//next button
if ($page < $counter - 1)
$pagination.= "<a href=\"search-$next.html\">next »</a>";
else
$pagination.= "<span class=\"disabled\">next »</span>";
$pagination.= "</div>\n";
}
$q=mysql_query("select * from scripts where title like '%$term%' or discription like '%$term%' and approved='1' order by script_id desc limit $start,$limit");
$numr=mysql_num_rows($q);
if ($numr==0)
{
echo '<div class="msg_info_box">No results were found. Please try a different search.</div>';
}
while($script=mysql_fetch_assoc($q)){
$str = $script['discription'];
$wcount = strlen($str);
if ($wcount > 295){
$dis = substr($str, 0, 295).'...';
}else{
$dis = $str;
}
$sname = $script['title'];
$sname = preg_replace("![^a-z0-9]+!i", "-", $sname);
$sname = strtolower($sname);
$lid = $script['licens_id'];
$license= mysql_query("SELECT * FROM licens WHERE id='$lid' LIMIT 1") or die (mysql_error());
$lrow = mysql_fetch_array($license);
?>
<div class="new_scripts">
<div class="n_title"><a href="script-<?php echo $script['script_id'];?>-<?php echo $sname;?>.html"><?php echo $script['title'];?></a></div>
<div class="n_dis"><?php echo $dis;?></div>
<div class="n_menu">
<!--#-->
<div class="ii_info"><span class="is_lable"><a class="s_link" href="<?php echo $script['script_url'];?>" target="_blank">Visit Publisher Site</a></span> | </div>
<div class="ii_info"><span class="is_lable"><a class="s_link" href="<?php echo $script['script_demo'];?>" target="_blank">View Demo</a></span></div>
<div class="i_info"><span class="is_lable">License Type:</span><span class="license"> <?php echo $lrow['lname'];?></span></div>
<!--#-->
</div>
</div>
<?php } ?>
<div class="pagediv"><?php echo $pagination;?></div>
</div>
im wondering is the any way to give the search form action like action="search.php?term=keyword. i think if i can post the url like this i can use $_GET to take the keyworkd. if anyone can help me with this in anyway i really appropriated. thanks in advanced.
Solution
Change your action attribute to get
<form name="search" id="search" method="get" action="search.php">
This way your form's values will be appended to search.php on submission.
For example:
search.php?term=the_term
OTHER TIPS
Rather than inline pagination code you an have a class and then can use it by calling its functions. This way you can avoid re-coding and its a better way to program.
You do not need to do anything with the class but just need to check the call.
Call:
$paging = new Pager;
$pagesize=$_GET['pagesize'];
$sql="select * from tbl where 1 order by tbl_id desc ";
$limit=$paging->pageSize($pagesize);
$start = $paging->findStart($limit);
$ExecQuery=mysql_query($sql) or die(mysql_error());
$count=mysql_num_rows($ExecQuery);
$pages =$paging->findPages($count, $limit);
$pagelist = $paging->pageList($_GET['page'], $pages,$pagesize , "srchfield=234&srcfield2=455");
$showingR=$paging->showingRecords($start,$limit,$count);
$orderBy=$_REQUEST['order_by'];
$orderBy2=$_REQUEST['order_by2'];
$Exec=mysql_query("$sql $orders LIMIT $start , $limit") or die(mysql_error());
$countrecord=mysql_num_rows($Exec);
Pager Class
class Pager {
function pageSize($size)
{
if(!empty($size))
{
return $size;
}else{
return 10;
}
}
function findStart($limit) {
if ((!isset($_GET['page'])) || ($_GET['page'] == "1")) {
$start = 0;
$_GET['page'] = 1;
}
else {
$start = ($_GET['page']-1) * $limit;
}
return $start;
}
function findPages($count, $limit) {
$pages = (($count % $limit) == 0) ? $count / $limit : floor($count / $limit) + 1;
return $pages;
}
function pageList($curpage, $pages,$pagesize,$queryString=false)
{
$page_list = "";
if (($curpage-1) > 0)
{
if($pages<=5)
{
$page_list .= "<a href=\"".$_SERVER['PHP_SELF']."?page=".($curpage-1)."&".$queryString."&pagesize=".$pagesize."\" title=\"Previous Page\">Previous</a> ";
}
else
{
$page_list .= "<a href=\"".$_SERVER['PHP_SELF']."?page=".'1'."&".$queryString."&pagesize=".$pagesize."\" title=\"First Page\">First</a> <a href=\"".$_SERVER['PHP_SELF']."?page=".($curpage-1)."&".$queryString."&pagesize=".$pagesize."\" title=\"Previous Page\">Previous</a> ";
}
}
$limit=$pages-4;
$startpage=$curpage;
if($pages<=5)
{
$startpage=1;
$lastpage=$pages;
}
elseif($startpage>$limit)
{
$startpage=$limit;
$lastpage=$pages;
}
else
{
$lastpage=$startpage+4;
}
for ($i=$startpage; $i<=$pages and $i<=$lastpage; $i++)
{
if ($i == $curpage)
{
$page_list .= "<b>".$i."</b>";
}
else
{
$page_list .= "<a href=\"".$_SERVER['PHP_SELF']."?page=".$i."&".$queryString."&pagesize=".$pagesize."\" title=\"Page ".$i."\">".$i."</a>";
}
$page_list .= " ";
}
/* Print the Next and Last page links if necessary */
if (($curpage+1) <= $pages)
{
if(($curpage+1) <= $limit)
{
$page_list .= " <a href=\"".$_SERVER['PHP_SELF']."?page=".($curpage+1)."&".$queryString."&pagesize=".$pagesize."\" title=\"Next Page\">Next</a>
<a href=\"".$_SERVER['PHP_SELF']."?page=".$pages."&".$queryString."&pagesize=".$pagesize."\" title=\"Last Page\">Last</a> ";
}
else
{
$page_list .= " <a href=\"".$_SERVER['PHP_SELF']."?page=".($curpage+1)."&".$queryString."&pagesize=".$pagesize."\" title=\"Next Page\">Next</a>";
}
}
$page_list .= "</td>\n";
return $page_list;
}
function nextPrev($curpage, $pages,$pagesize) {
$next_prev = "";
if (($curpage-1) <= 0) {
$next_prev .= "Previous";
}else {
$next_prev .= "<a href=\"".$_SERVER['PHP_SELF']."?page=".($curpage-1)."&pagesize=".$pagesize."\">Previous</a>";
}
$next_prev .= " | ";
if (($curpage+1) > $pages) {
$next_prev .= "Next";
}else {
$next_prev .= "<a href=\"".$_SERVER['PHP_SELF']."?page=".($curpage+1)."&pagesize=".$pagesize."\">Next</a>";
}
return $next_prev;
}
function showingRecords($start,$limit,$count) {
$toEnd=$start+$limit;
if($toEnd>$count) {
$endPoint=$count;
}else {
$endPoint=$toEnd;
}
return ($start+1)." to ".$endPoint." of ".$count;
}
}
?>
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