Hi Everyone,

I am NOT a programmer, but I am attempting to put together a dropdown listing for our company's website. It's a very simple operation, but I'm struggling figuring out how to make it work.

I have it partially working.

The idea is the list all of the tires that we have in our inventory so that customers know what we have for them. We want to have 3 (possibly add more later) dropdown menus that allow a person to choose the width, sidewall, and rim size. That will then sort information from a MySQL database and display it to the customer. (This way they can see all of the R16 tires we have. Or all of the 70/R16, or all of the 175/90/R15, etc.)

While looking around online (and on this site) I've found quite a bit of useful information that I've been able to use to get things going.

Right now my database is called names and has the tables: Width, Sidewall, Rim.

I am able to get the dropdown menus to populate correctly.
I am able to get the Width dropdown menu to work correctly.
The Sidewall (Height) and the Rim do not work and I have NO clue where to go next to attempt to get them to work.

ANY help would be GREATLY appreciated!

Thank you in advance,

Here is the code...

Code:
<?php

/*
* Testing configuration
*/
define('ENVIR',0);
define('ENVIR_DEV',0);
define('ENVIR_LIVE',1);

/*
* Data base credentials (replace this with your db credentials)
*/
define('DB_USER','**********');
define('DB_PWD','**********');
define('DB_HOST','**********');
define('DB_NAME','**********');

/*
* Connect to database
*/
try {
    $db = new PDO('mysql:host='.DB_HOST.';dbname='.DB_NAME,DB_USER,DB_PWD);
} catch(PDOExeption $e) {

    if(ENVIR == ENVIR_DEV) {
        echo '<p>',$e->getMessage(),'</p>';
    }

    echo '<p>Unable to connect to database<p>';
    exit;
}

/*
* Template variables
*/
$tpl = array(
    'filter'=>array(
         '#action'        => $_SERVER['SCRIPT_NAME']
        ,'#method'      => 'get'
        ,'Sidewall'    => array(
            '#values'=>array(
                 array('value'=>'','label'=>'All')
            )
        )
		,'Width'    =>array(
		    '#values'=>array(
			     array('value'=>'','label'=>'All')
            )
		)
		,'Rim'    =>array(
		    '#values'=>array(
			     array('value'=>'','label'=>'All')
            )
		)
	)
    ,'grid'=>array(
        'names'=>array()
    )
);

/*
* Width Dropdown menu info pulled from DB
*/
$stmt = $db->query('SELECT Width FROM names GROUP BY Width ORDER BY Width ASC');

if($stmt === false) {
    echo '<p>Unable to populate required data to build page.</p>';
    exit;
}

while($row=$stmt->fetch(PDO::FETCH_ASSOC)) {
    $tpl['filter']['Width']['#values'][] = array(
         'label'        => $row['Width']
        ,'value'        => $row['Width']
        ,'selected'        => isset($_GET['filter'],$_GET['filter']['Width']) && $_GET['filter']['Width'] == $row['Width']
    );
}

/*
* Sidewall Dropdown menu info pulled from DB
*/
$stmt = $db->query('SELECT Sidewall FROM names GROUP BY Sidewall ORDER BY Sidewall ASC');

if($stmt === false) {
    echo '<p>Unable to populate required data to build page.</p>';
    exit;
}

while($row=$stmt->fetch(PDO::FETCH_ASSOC)) {
    $tpl['filter']['Sidewall']['#values'][] = array(
         'label'        => $row['Sidewall']
        ,'value'        => $row['Sidewall']
        ,'selected'        => isset($_GET['filter'],$_GET['filter']['Sidewall']) && $_GET['filter']['Sidewall'] == $row['Sidewall']
    );
}

/*
* Rim Dropdown menu info pulled from DB
*/
$stmt = $db->query('SELECT Rim FROM names GROUP BY Rim ORDER BY Rim ASC');

if($stmt === false) {
    echo '<p>Unable to populate required data to build page.</p>';
    exit;
}

while($row=$stmt->fetch(PDO::FETCH_ASSOC)) {
    $tpl['filter']['Rim']['#values'][] = array(
         'label'        => $row['Rim']
        ,'value'        => $row['Rim']
        ,'selected'        => isset($_GET['filter'],$_GET['filter']['Rim']) && $_GET['filter']['Rim'] == $row['Rim']
    );
}



/*
* ISSUES HERE!!!!!     Filter info from DB to show on list.
*/
$stmt = $db->prepare(sprintf(
    'SELECT Sidewall,Width,Rim FROM names %s'
    , isset($_GET['filter'],$_GET['filter']['Sidewall']) && !empty($_GET['filter']['Sidewall'])?'WHERE Sidewall = :Sidewall':''
	, isset($_GET['filter'],$_GET['filter']['Width']) && !empty($_GET['filter']['Width'])?'WHERE Width = :Width':''
	, isset($_GET['filter'],$_GET['filter']['Rim']) && !empty($_GET['filter']['Rim'])?'WHERE Rim = :Rim':''
));

if($stmt === false) {
    echo '<p>Unable to populate required data to build page.</p>';
    exit;
}

$stmt->execute(isset($_GET['filter'],$_GET['filter']['Sidewall']) && !empty($_GET['filter']['Sidewall'])?array(':Sidewall'=>$_GET['filter']['Sidewall']):array());
while($row=$stmt->fetch(PDO::FETCH_ASSOC)) {
    $tpl['grid']['names'][] = $row;
}
/*  Attempting to filter Rim in addition to sidewall = ERROR
$stmt->execute(isset($_GET['filter'],$_GET['filter']['Rim']) && !empty($_GET['filter']['Rim'])?array(':Rim'=>$_GET['filter']['Rim']):array());
while($row=$stmt->fetch(PDO::FETCH_ASSOC)) {
    $tpl['grid']['names'][] = $row;
}
*/
/*  Attempting to filter Width in addition to sidewall = ERROR
$stmt->execute(isset($_GET['filter'],$_GET['filter']['Width']) && !empty($_GET['filter']['Width'])?array(':Width'=>$_GET['filter']['Width']):array());
while($row=$stmt->fetch(PDO::FETCH_ASSOC)) {
    $tpl['grid']['names'][] = $row;
}
*/



/*
* Start template output
*/
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8">
    <title>Tire Inventory</title>
</head>
<body>

<!-- user selects from downdown menu section -->
<form action="<?php echo $tpl['filter']['#action']; ?>" method="<?php echo $tpl['filter']['#method']; ?>">
    <fieldset>
        <legend>Tire Inventory</legend>
        <ul>
            <li>
			    <label for="filter-last-name">Select Tire Height</label>
                <select name="filter[Sidewall]" id="filter-last-name">
                    <?php 
                    foreach($tpl['filter']['Sidewall']['#values'] as &$option) {
                        printf(
                            '<option value="%s"%s>%s</option>'
                            ,htmlentities($option['value'])
                            ,$option['selected']?' selected':''
                            ,htmlentities($option['label'])
                        );
                    } 
                    ?>
                </select>
				<label for="filter-last-name">Select Tire Width</label>
                <select name="filter[Width]" id="filter-last-name">
                    <?php 
                    foreach($tpl['filter']['Width']['#values'] as &$option) {
                        printf(
                            '<option value="%s"%s>%s</option>'
                            ,htmlentities($option['value'])
                            ,$option['selected']?' selected':''
                            ,htmlentities($option['label'])
                        );
                    } 
                    ?>
                </select>

			    <label for="filter-last-name">Select Tire Rim Size</label>
                <select name="filter[Rim]" id="filter-last-name">
                    <?php 
                    foreach($tpl['filter']['Rim']['#values'] as &$option) {
                        printf(
                            '<option value="%s"%s>%s</option>'
                            ,htmlentities($option['value'])
                            ,$option['selected']?' selected':''
                            ,htmlentities($option['label'])
                        );
                    } 
                    ?>
                </select>



				
            </li>
            <li>
                <input type="submit" name="filter[submit]" value="Filter Names"> 
            </li>
        </ul>
    </fieldset>
</form>

<!-- data grid template -->
<table>
    <caption>Tires</caption>
    <thead>
        <tr>
            <th>Tire Height</th>
            <th>Tire Width</th>
			<th>Tire Rim Size</th>
        </tr>
    </thead>
    <tbody>
        <?php
            if(!empty($tpl['grid']['names'])) {
                foreach($tpl['grid']['names'] as &$name) {
                    printf(
                        '<tr>
                            <td>%s</td>
                            <td>%s</td>
							<td>%s</td>
                         </tr>'
                         ,htmlentities($name['Sidewall'])
                         ,htmlentities($name['Width'])
						 ,htmlentities($name['Rim'])
                    );
                }
            } else {
                echo '<tr><td colspan="3">No names available</td></tr>';
            }
        ?>
    </tbody>
</table>

</body>
</html>