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Multiple Checkbox Filter query in PHP

TiwstedNy

By TiwstedNy
in PHP Coding Help

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TiwstedNy Newbie

TiwstedNy

Posted
Posted (edited)

Hello,

 

I have been looking all over the internet for example on how to filter a query using multiple check boxes. To best explain what I need I believe showing you an example is the best way to go about it.  http://www.whirlpool.com/Kitchen-1/Kitchen_Refrigeration_Refrigerators-3/102110023+102110368/ If you click on the link you will notice on the left side of the page there is a filter results section that allows you to pick and choose what you want.

 

I want to learn how to filter my query using multiple checkboxes

 

I will post my code below and would appreciate any help.

<!doctype html>
<html lang="en">
 <head>
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <link href="http://fonts.googleapis.com/css?family=Bree+Serif" rel="stylesheet" type="text/css">
  <link href="http://fonts.googleapis.com/css?family=Open+Sans" rel="stylesheet" type="text/css">
  <link href='http://fonts.googleapis.com/css?family=Lusitana' rel='stylesheet' type='text/css'>
  <link rel="stylesheet" type="text/css" href="style.css" />
  <title>Quailty Appliances</title>
 </head>
 <body>
  <?php 
	include 'config/header.php';

	// connect to database
	include 'config/config.php';
	include 'config/opendb.php';

	$inventory__cat = 4; // by default category is set to 1 (Dishwashers)
	$pageNum        = 1; // by default we show first page
	$ErrMessage     = "False";

	// if $_GET['cat'] defined, use it as set category
	if(isset($_GET['cat'])){
		$inventory__cat = clean_input($_GET["cat"]);
	}

	// if $_GET['page'] defined, use it as page number
	if(isset($_GET['page'])){
		$pageNum = $_GET['page'];
	}

	$targetpage = "inventory.php"; 	
	$limit = 6; 
	
	$query  =  mysqli_query($conn,"SELECT COUNT(*) as num FROM products WHERE cat_id = '$inventory__cat'");
	$total_pages = mysqli_fetch_array($query);
	$total_pages = $total_pages['num'];
	
	$stages = 3;
	$page = mysqli_escape_string($conn, $pageNum);
	if($page){
		$start = ($page - 1) * $limit; 
	}else{
		$start = 0;	
		}	
	
    // Get page data
	$result = mysqli_query($conn,"SELECT * FROM products WHERE cat_id = '$inventory__cat' LIMIT $start, $limit");
	$category_exist = mysqli_num_rows($result);
	
	// checking to see if query returns a result.
	if($category_exist == 0){
		$ErrMessage = "True"; // display message if no results are returned.
	}
	
	// Initial page num setup
	if ($page == 0){$page = 1;}
	$prev = $page - 1;	
	$next = $page + 1;							
	$lastpage = ceil($total_pages/$limit);		
	$LastPagem1 = $lastpage - 1;					
	
	
	$paginate = '';
	if($lastpage > 1)
	{	
		$paginate .= "<div class='paginate'>";
		// Previous
		if ($page > 1){
			$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$prev'>previous</a>";
		}else{
			$paginate.= "<span class='disabled'>previous</span>";	}
			

		
		// Pages	
		if ($lastpage < 7 + ($stages * 2))	// Not enough pages to breaking it up
		{	
			for ($counter = 1; $counter <= $lastpage; $counter++)
			{
				if ($counter == $page){
					$paginate.= "<span class='current'>$counter</span>";
				}else{
					$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$counter'>$counter</a>";}					
			}
		}
		elseif($lastpage > 5 + ($stages * 2))	// Enough pages to hide a few?
		{
			// Beginning only hide later pages
			if($page < 1 + ($stages * 2))		
			{
				for ($counter = 1; $counter < 4 + ($stages * 2); $counter++)
				{
					if ($counter == $page){
						$paginate.= "<span class='current'>$counter</span>";
					}else{
						$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$counter'>$counter</a>";}					
				}
				$paginate.= "...";
				$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$LastPagem1'>$LastPagem1</a>";
				$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$lastpage'>$lastpage</a>";		
			}
			// Middle hide some front and some back
			elseif($lastpage - ($stages * 2) > $page && $page > ($stages * 2))
			{
				$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=1'>1</a>";
				$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=2'>2</a>";
				$paginate.= "...";
				for ($counter = $page - $stages; $counter <= $page + $stages; $counter++)
				{
					if ($counter == $page){
						$paginate.= "<span class='current'>$counter</span>";
					}else{
						$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$counter'>$counter</a>";}					
				}
				$paginate.= "...";
				$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$LastPagem1'>$LastPagem1</a>";
				$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$lastpage'>$lastpage</a>";		
			}
			// End only hide early pages
			else
			{
				$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=1'>1</a>";
				$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=2'>2</a>";
				$paginate.= "...";
				for ($counter = $lastpage - (2 + ($stages * 2)); $counter <= $lastpage; $counter++)
				{
					if ($counter == $page){
						$paginate.= "<span class='current'>$counter</span>";
					}else{
						$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$counter'>$counter</a>";}					
				}
			}
		}
					
				// Next
		if ($page < $counter - 1){ 
			$paginate.= "<a href='$targetpage?cat=$inventory__cat&page=$next'>next</a>";
		}else{
			$paginate.= "<span class='disabled'>next</span>";
			}
			
		$paginate.= "</div>";		
	
	
}

    // get category name
    $cat = mysqli_query($conn,"SELECT cat_name FROM categories WHERE cat_id = '$inventory__cat'");
    while ($rowCAT = mysqli_fetch_array($cat)){
		$inv_cat = $rowCAT['cat_name'];

		if ($inv_cat =="Stoves_Ranges"){ 
			$inv_cat = "Stoves & Ranges"; 
		}
		if ($inv_cat =="Washers_Dryers"){ 
			$inv_cat = "Washers & Dryers"; 
		} 
	}

	// function to clean $_GET.
	function clean_input($data){
		$data = trim($data);
		$data = stripslashes($data);
		$data = htmlspecialchars($data);
		return $data;
	}
  ?>
  <!-- Main Body Table START -->
	 <table class="BodyTable">
	  <tr>
	   <td>
	    <table width="100%" cellspacing="0" cellpadding="0" border="0">
	     <tr>
	      <td colspan="2"><h1><?php echo "$inv_cat";?></h1></td>
	     </tr>
	     <tr>
	      <td colspan="2">
		   <?php
	        if($ErrMessage == "False"){
				echo "<table width='100%' cellspacing='0' cellpadding='0' border='0'>
	                   <tr>
		                <td align='right'>$paginate</td>
		                <td align='right' width='80px' style='color:#696868;'>$total_pages Results</td>
		               </tr>
	                  </table>";
	        }
	       ?>
		  </td>
	     </tr>
	     <tr>
	      <td width="205" valign="top">
		   <form method="post" enctype="multipart/form-data" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
		   <input type="hidden" value="4" name="cat" />
		   <div id="filterContent">
		    <div id="filterContentTitle">Filter Results</div>

		    <div id="filterContentResults">
		     <div id="filterContentCat">Categories</div>
		     <?php
		     $query_cat = mysqli_query($conn,"SELECT * FROM categories ORDER BY cat_name ASC");
             while ($rowcat = mysqli_fetch_array($query_cat)){
				 echo "<input type='checkbox' name='categories' value='{$rowcat['cat_id']}'"; ?><?php if (isset($manufacturer) && $manufacturer=="Fratelli") echo "checked";?> <?php echo" /><label for='categories'>{$rowcat['cat_name']}</label><br />";
			 }
		     ?>
			</div>
			<hr />
			<div id="filterContentResults">
		     <div id="filterContentCat">Brands</div>
		     <?php
		     $query_brand = mysqli_query($conn,"SELECT DISTINCT _manufacturer FROM products WHERE cat_id = '$inventory__cat'");
             while ($rowbrand = mysqli_fetch_array($query_brand)){
				 echo "<input type='checkbox' name='brand[]' value='{$rowbrand['_manufacturer']}' onclick='this.form.submit()'; /><label for='brand'>{$rowbrand['_manufacturer']}</label><br />";
			 }
		     ?>
		    </div>
			<hr />
		    <div id="filterContentResults">
		     <div id="filterContentCat"><?php echo "$inv_cat";?> Type</div>
		     <?php
		     $query_type = mysqli_query($conn,"SELECT DISTINCT sub_cat FROM products WHERE cat_id = '$inventory__cat'");
             while ($rowtype = mysqli_fetch_array($query_type)){
				 echo "<input type='checkbox' name='subCategory' value='{$rowtype['sub_cat']}'><label for='subCategory'>{$rowtype['sub_cat']}</label><br />";
			 }
		     ?>
		    </div>
			<hr />
			<div id="filterContentResults">
		     <div id="filterContentCat"><?php echo "$inv_cat";?> Capacity</div>
		     <?php
		     $query_cubic = mysqli_query($conn,"SELECT DISTINCT cubic_feet FROM products WHERE cat_id = '$inventory__cat'");
             while ($rowcolor = mysqli_fetch_array($query_cubic)){
				 echo "<input type='checkbox' name='capacity' value='{$rowcolor['cubic_feet']}'><label for='capacity'>{$rowcolor['cubic_feet']}</label><br />";
			 }
		     ?>
			</div>
			<hr />
			<div id="filterContentResults">
		     <div id="filterContentCat">Condition</div>
		     <?php
		     $query_cond = mysqli_query($conn,"SELECT DISTINCT _Pcondition FROM products WHERE cat_id = '$inventory__cat'");
             while ($rowcond = mysqli_fetch_array($query_cond)){
				 echo "<input type='checkbox' name='condition' value='{$rowcond['_Pcondition']}'><label for='condition'>{$rowcond['_Pcondition']}</label><br />";
			 }
		     ?>
			</div>
			<hr />
			<div id="filterContentResults">
		     <div id="filterContentCat">Color</div>
		     <?php
		     $query_color = mysqli_query($conn,"SELECT DISTINCT _color FROM products WHERE cat_id = '$inventory__cat'");
             while ($rowcolor = mysqli_fetch_array($query_color)){
				 echo "<input type='checkbox' name='color' value='{$rowcolor['_color']}'><label for='color'>{$rowcolor['_color']}</label><br />";
			 }
		     ?>
		    </div>
		   </div>
		   </form>
		  </td>
	      <td valign="top">
		  <hr />
		   <table cellspacing="0" cellpadding="0" border="0">
		   <?php
		   
		   if($ErrMessage == "True"){
			   echo "<tr><td><p><span class=\"error2\">No Products Have Been Entered Under This category.</span></p></td></tr>";
		   } else if ($ErrMessage == "False"){
			   
			   // // // display data results
			   while($row = mysqli_fetch_array($result)){
				   $price        = $row['_price'];
				   $value        = preg_replace('/[\$,]/', '', $price);
				   $currentprice = (int)$value;
				   $price        = number_format($currentprice,2);
				   $energy_star  = $row['energy_star'];

				   if($energy_star == "Yes"){
					   $energy_star = "<li>Energy Efficient</li>";
					   $energy_pic  = "<img src='/images/icon_energy_star.jpg' width='39' height='39' class='energy' border='0' title='Energy Star Efficient' />";
				   } else {
					   $energy_star = "";
					   $energy_pic  = "";
				   }

				   echo "<tr>
				          <td width='135px'>
						   <div id='contentImg'>
						    <img src='/images/products/{$row['product_id']}{$row['_thumbnail']}'  class='displayed' style='max-width:225px;max-height:125px;padding-top:4px;' border='0' title='{$row['_title']}' /><br />
						   </div>
						  </td>
						  <td valign='top' width='500px'>
						   <div id='InvenTitlte'><a href='#'>{$row['_title']}</a></div>
						   <div id='ModelNumSm'>Model#: {$row['model_number']}</div>
						   <div id='contentProductFeatures'>
						    <div>
						     <ul>
							  <li>{$row['_color']}</li>
							  $energy_star
							 </ul>
							</div>
							<div>
						     <ul>
							  <li>Capacity: {$row['cubic_feet']}</li>
							  <li>Condition: {$row['_Pcondition']}</li>
							 </ul>
							</div>
							<div>
						     <ul>
							  <li>{$row['_height']} H x {$row['_width']} W x{$row['_depth']} D</li>
							  <li>Weight: {$row['_weight']}</li>
							 </ul>
							</div>
						   </div>
						   $energy_pic
						  </td>
						  <td valign='top' width='83px;' align='right'><div id='contentProductPrice'>$$price</div><div id='contentProductText'>price</div></td>
				         </tr>
						 <tr>
						  <td colspan='3'><hr /></td>
						 </tr>";
			   }
		   }
		   
		   include 'config/close.php';
		   ?>	    
		   </table>
		  </td>	    
	     </tr>
		 <tr>
	      <td colspan="2">
		   <?php
	        if($ErrMessage == "False"){
				echo "<table width='100%' cellspacing='0' cellpadding='0' border='0'>
	                   <tr>
		                <td align='right'>$paginate</td>
		                <td align='right' width='80px'>$total_pages Results</td>
		               </tr>
	                  </table>";
	        }
	       ?>
		  </td>
	     </tr>
	    </table> 
	   </td>
	  </tr>
	 </table>
	<!-- Main Body Table END -->
  <?php include 'config/footer.php'; ?>
 </body>
</html>
Edited by TiwstedNy
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