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6.6

Filtering the search results based on the drop down menu select

Asked by PranjalShah in Miscellaneous Web Development, PHP and Databases

Tags: web development, php, mysql

I am creating this question again since the AJAX work did not completely solve my problem. I am trying to filter my search results based on the dropdown selection. In the code below, I am generating two drop down boxes based on the search criteria. I want to filter the results based on that selection. I believe if I can pass the value of the selected value and run the query with that, it should show the filtered results...

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             <?php
//error handling
//ini_set('error_reporting',E_ALL);
//ini_set('display_errors',1);
include 'main_new.php';
include_once('../inludes/db.php');
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" media="screen" href="../builder/chassis/css/table.css" />
<script src="js/sorttable.js"></script>
<title>Search</title>
</head>
<body>
<form name="form" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="get">
 <input type="text"  onfocus="this.value = (this.value=='Enter your search...')? '' : this.value;" value="Enter your search..." name="q" />
  <input type="submit" name="Submit" value="Search" />
</form> 
<?php
  // Get the search variable from URL
 
  $var = (!empty($_GET['q'])) ?  mysql_real_escape_string(trim($_GET['q'])) : '';
 
// rows to return
$limit=25; 
 
// check for an empty string and display a message.
if (empty($var))
  {
  echo "<p></p>";
  exit;
  }
 
// Build SQL Query  
$query = "SELECT ID,name,description,vendor,IFNULL(price,'N/A')price,IFNULL(cost,'N/A')cost,IFNULL(category,'N/A')category,IFNULL(subcategory,'N/A')subcategory FROM prices WHERE name LIKE '%$var%' OR description LIKE '%$var%' OR vendor LIKE '%$var%' OR category LIKE '%$var%' OR subcategory LIKE '%$var%'";
//$query = "SELECT * FROM prices WHERE name LIKE '%$var%' OR description LIKE '%$var%' OR vendor LIKE '%$var%' OR category LIKE '%$var%' OR subcategory LIKE '%$var%'"; // EDIT HERE and specify your table and field names for the SQL query
 
 
  $drop1="select id, IFNULL(category,'N/A')category from prices where name LIKE '%$var%' OR description LIKE '%$var%' OR vendor LIKE '%$var%' OR category LIKE '%$var%' OR subcategory LIKE '%$var%' group by category order by id asc";
   
   $drop2="select id, IFNULL(subcategory,'N/A')subcategory from prices where name LIKE '%$var%' OR description LIKE '%$var%' OR vendor LIKE '%$var%' OR category LIKE '%$var%' OR subcategory LIKE '%$var%' group by subcategory order by id asc";
 
 $numresults=mysql_query($query);
 $numrows=mysql_num_rows($numresults);
 
// If we have no results, offer a google search as an alternative
 
if ($numrows == 0)
  {
  echo "<h4>Results</h4>";
  echo "<p>Sorry, your search: &quot;" . $var . "&quot; returned zero results</p>";
  }
 
// next determine if s has been passed to script, if not use 0
 $s = (!empty($_GET['s'])) ?  intval($_GET['s']) : 0;
 
// get results
  $query .= " limit $s,$limit";
  $result = mysql_query($query) or die("Couldn't execute query");
 
// display what the person searched for
echo "<p>Your search results for <strong> &quot;" . $var . "&quot;</strong> are as below..</p>";
 
// begin to show results set
//echo "<h4>Results</h4>";
$count = 1 + $s ; 
$currPage = (($s/$limit) + 1); 

echo "<select>";
  //echo "<option>Filter by Category</option>";
  $res=mysql_query($drop1);
  echo "<option>Filter by Category</option>";
  while(list($id,$category)=mysql_fetch_row($res))
  {
	  
	  echo "<option value=\"".$id."\">".$category."</option>";
  }
  
echo "</select>&nbsp;&nbsp;OR&nbsp;&nbsp;";
echo "<select>"; 
echo "<option>Filter by Subcategory</option>";
  $res2=mysql_query($drop2);
  while(list($id,$subcategory)=mysql_fetch_row($res2))
  {
	  echo "<option value=\"".$id."\">".$subcategory."</option>";
  }
  echo "</select>";
  
 
//break before paging
  echo "<br />";
 
  // next we need to do the links to other results
  if ($s>=1) { // bypass PREV link if s is 0
  $prevs=($s-$limit);
  print " <a href=\"$_SERVER[PHP_SELF]?s=$prevs&q=$var\">&lt;&lt; 
  Prev $limit</a>&nbsp ";
  }
 
// calculate number of pages needing links
  $pages=intval($numrows/$limit);
 
// $pages now contains int of pages needed unless there is a remainder from division
 
  if ($numrows%$limit) {
  // has remainder so add one page
  $pages++;
  }
 
// check to see if last page
  if (!((($s+$limit)/$limit)==$pages) && $pages!=1) {
 
  // not last page so give NEXT link
  $news=$s+$limit;
 
  echo " <a href=\"$_SERVER[PHP_SELF]?s=$news&q=$var\">Next $limit &gt;&gt;</a>";
  }
  
// now you can display the results returned
  /*while ($row= mysql_fetch_array($result)) {
  $title = $row["name"];
 
  echo "$count.) $title<br>" ;
  $count++ ;
  }
 */
 if(mysql_num_rows($result) )
{
	
  echo "<table width=50% border=1 class=sortable>";
  echo "<tr><th> </th><th>No</th><th>Name</th><th>Description</th><th>Vendor</th><th>List Price</th><th>Street Price</th><th>Category</th><th>Sub Category</th></tr>";
// now you can display the results returned
  while ($row= mysql_fetch_array($result)) {
	if($row['cost']=="N/A") {$dol1="";} else {
	
	$dol1 = "$";  }
	$dol = "$";
  echo "<tr><td><input type='checkbox' name='price[]' value='{$row['ID']}' /></td><td>{$count}</td><td>{$row['name']}</td><td>{$row['description']}</td><td>{$row['vendor']}</td><td>$dol{$row['price']}</td><td>$dol1{$row['cost']}</td><td>{$row['category']}</td><td>{$row['subcategory']}</td></tr>";
  $count++ ;
  }
  echo "</table>";
}
$currPage = (($s/$limit) + 1);
 
//break before paging
  echo "<br />";
 
  // next we need to do the links to other results
  if ($s>=1) { // bypass PREV link if s is 0
  $prevs=($s-$limit);
  print " <a href=\"$_SERVER[PHP_SELF]?s=$prevs&q=$var\">&lt;&lt; 
  Prev $limit</a>&nbsp ";
  }
 
// calculate number of pages needing links
  $pages=intval($numrows/$limit);
 
// $pages now contains int of pages needed unless there is a remainder from division
 
  if ($numrows%$limit) {
  // has remainder so add one page
  $pages++;
  }
 
// check to see if last page
  if (!((($s+$limit)/$limit)==$pages) && $pages!=1) {
 
  // not last page so give NEXT link
  $news=$s+$limit;
 
  echo " <a href=\"$_SERVER[PHP_SELF]?s=$news&q=$var\">Next $limit &gt;&gt;</a>";
  }
 
$a = $s + ($limit) ;
  if ($a > $numrows) { $a = $numrows ; }
  $b = $s + 1 ;
  echo "<p>Showing results $b to $a of $numrows</p>";
  
?></body>
</html>

           
         

	Title
1	New on Beta - On the Fly Filters and …
2	Dynamic Drop Down based on User Se…

Filtering the search results based on the drop down menu select

Asked by PranjalShah in Miscellaneous Web Development, PHP and Databases

Tags: web development, php, mysql

About this solution