Recherche MySQL PHP avec pagination
https://stackoverflow.com//questions/11700868
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J'essaie de mettre en œuvre une recherche pour un projet sur lequel je travaille actuellement.Le problème auquel je suis confronté est que lorsque je vais à la 2ème page, le résultat de la recherche sera faux.
voici le formulaire de recherche qui se trouve dans mon 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" />
Voici le code php de ma page de recherche
<?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>
Je me demande s'il existe un moyen de donner au formulaire de recherche une action telle que action="search.php?term=keyword.je pense que si je peux publier l'URL comme celle-ci, je peux utiliser $_GET pour prendre le keyworkd.si quelqu'un peut m'aider de quelque manière que ce soit, je me suis vraiment approprié.Merci d'avance.
La solution
Change ton action attribuer à get
<form name="search" id="search" method="get" action="search.php">
De cette façon, les valeurs de votre formulaire seront ajoutées à search.php à la soumission.
Par exemple:
search.php?term=the_term
Autres conseils
plutôt que le code de la pagination inline Vous avez une classe, puis pouvez l'utiliser en appelant ses fonctions.De cette façon, vous pouvez éviter de recoder et son meilleur moyen de programmer.
Vous n'avez pas besoin de faire quoi que ce soit avec la classe, mais il suffit de vérifier l'appel.
$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);
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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