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Example Application (PDO_SQLSRV Driver)

SQL Server 2008 R2

The AdventureWorks Product Reviews example application is a Web application that uses the PDO_SQLSRV driver of the Microsoft Drivers for PHP for SQL Server. The application lets a user search for products by entering a keyword, see reviews for a selected product, write a review for a selected product, and upload an image for a selected product.

Running the Example Application

  1. Install the Microsoft Drivers for PHP for SQL Server. For detailed information, see Getting Started.

  2. Copy the code listed later in this document into two files: adventureworks_demo.php and photo.php.

  3. Put the adventureworks_demo.php and photo.php files in the root directory of your Web server.

  4. Run the application by starting http://localhost/adventureworks_demo.php from your browser.

To run the AdventureWorks Product Reviews example application, the following must be true for your computer:

  • Your system meets the requirements for the Microsoft Drivers for PHP for SQL Server. For detailed information, see System Requirements (Microsoft Drivers for PHP for SQL Server).

  • The adventureworks_demo.php and photo.php files are in the root directory of your Web server. The files must contain the code listed later in this document.

  • SQL Server 2005 or SQL Server 2008, with the AdventureWorks2008 database attached, is installed on the local computer.

  • A Web browser is installed.

The AdventureWorks Product Reviews example application demonstrates the following:

  • How to open a connection to SQL Server by using Windows Authentication.

  • How to prepare and execute a parameterized query.

  • How to retrieve data.

  • How to check for errors.

The AdventureWorks Product Reviews example application returns product information from the database for products whose names contain a string entered by the user. From the list of returned products, the user can see reviews, see an image, upload an image, and write a review for a selected product.

Put the following code in a file named adventureworks_demo_pdo.php:

<!--=====================================================================
This file is part of a Microsoft SQL Server Shared Source Application.
Copyright (C) Microsoft Corporation.  All rights reserved.
 
THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
======================================================= *-->

<!--Note: The presentation formatting of this example application -->
<!-- is intentionally simple to emphasize the SQL Server -->
<!-- data access code.-->
<html>
<head>
<title>AdventureWorks Product Reviews</title>
</head>
<body>
<h1 align='center'>AdventureWorks Product Reviews</h1>
<h5 align='center'>This application is a demonstration of the 
                   object oriented API (PDO_SQLSRV driver) for the 
                   Microsoft Drivers for PHP for SQL Server.</h5><br/>
<?php
$serverName = "(local)\sqlexpress";

/* Connect using Windows Authentication. */
try
{
$conn = new PDO( "sqlsrv:server=$serverName ; Database=AdventureWorks", "", "");
$conn->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
}
catch(Exception $e)
{ 
die( print_r( $e->getMessage() ) ); 
}

if(isset($_REQUEST['action']))
{
switch( $_REQUEST['action'] )
{
/* Get AdventureWorks products by querying against the product name.*/
case 'getproducts':
try
{
$params = array($_POST['query']);
$tsql = "SELECT ProductID, Name, Color, Size, ListPrice 
 FROM Production.Product 
 WHERE Name LIKE '%' + ? + '%' AND ListPrice > 0.0";

$getProducts = $conn->prepare($tsql);
$getProducts->execute($params);
$products = $getProducts->fetchAll(PDO::FETCH_ASSOC);
$productCount = count($products);
if($productCount > 0)
{
BeginProductsTable($productCount);
foreach( $products as $row )
{
PopulateProductsTable( $row );
}
EndProductsTable();
}
else
{
DisplayNoProdutsMsg();
}
}
catch(Exception $e)
{ 
die( print_r( $e->getMessage() ) ); 
}
GetSearchTerms( !null );
break;

/* Get reviews for a specified productID. */
case 'getreview':
GetPicture( $_GET['productid'] );
GetReviews( $conn, $_GET['productid'] );
break;

/* Write a review for a specified productID. */
case 'writereview':
DisplayWriteReviewForm( $_POST['productid'] );
break;

/* Submit a review to the database. */
case 'submitreview':
try
{
$tsql = "INSERT INTO Production.ProductReview (ProductID, 
   ReviewerName, 
   ReviewDate, 
   EmailAddress, 
   Rating, 
   Comments) 
        VALUES (?,?,?,?,?,?)";
$params = array(&$_POST['productid'], 
&$_POST['name'], 
date("Y-m-d"), 
&$_POST['email'], 
&$_POST['rating'], 
&$_POST['comments']);
$insertReview = $conn->prepare($tsql);
$insertReview->execute($params);
}
catch(Exception $e)
{ 
die( print_r( $e->getMessage() ) ); 
}
GetSearchTerms( true );
GetReviews( $conn, $_POST['productid'] );
break;

/* Display form for uploading a picture.*/
case 'displayuploadpictureform':
try
{
$tsql = "SELECT Name FROM Production.Product WHERE ProductID = ?";
$getName = $conn->prepare($tsql);
$getName->execute(array($_GET['productid']));
$name = $getName->fetchColumn(0);
}
catch(Exception $e)
{ 
die( print_r( $e->getMessage() ) ); 
}
DisplayUploadPictureForm( $_GET['productid'], $name );
break;

/* Upload a new picture for the selected product. */
case 'uploadpicture':         
try
{
$tsql = "INSERT INTO Production.ProductPhoto (LargePhoto) 
 VALUES (?)";
$uploadPic = $conn->prepare($tsql);
$fileStream = fopen($_FILES['file']['tmp_name'], "r");
$uploadPic->bindParam(1,  
  $fileStream, 
  PDO::PARAM_LOB, 
  0, 
  PDO::SQLSRV_ENCODING_BINARY);
$uploadPic->execute();

/* Get the first field - the identity from INSERT - 
   so we can associate it with the product ID. */
$photoID = $conn->lastInsertId();
$tsql = "UPDATE Production.ProductProductPhoto 
 SET ProductPhotoID = ? 
 WHERE ProductID = ?";
$associateIds = $conn->prepare($tsql);
$associateIds->execute(array($photoID, $_POST['productid']));
}
catch(Exception $e)
{
die(print_r($e->getMessage()));
}

GetPicture( $_POST['productid']);
DisplayWriteReviewButton( $_POST['productid'] );
GetSearchTerms (!null);
break;
}//End Switch
}
else
{
    GetSearchTerms( !null );
}

function GetPicture( $productID )
{
    echo "<table align='center'><tr align='center'><td>";
    echo "<img src='photo_pdo.php?productId=".$productID."' 
      height='150' width='150'/></td></tr>";
    echo "<tr align='center'><td><a href='?action=displayuploadpictureform&productid=".$productID."'>Upload new picture.</a></td></tr>";
    echo "</td></tr></table></br>";
}

function GetReviews( $conn, $productID )
{
try
{
$tsql = "SELECT ReviewerName, 
CONVERT(varchar(32), 
ReviewDate, 107) AS [ReviewDate], 
Rating, 
Comments 
 FROM Production.ProductReview 
 WHERE ProductID = ? 
 ORDER BY ReviewDate DESC";
$getReviews = $conn->prepare( $tsql);
$getReviews->execute(array($productID));
$reviews = $getReviews->fetchAll(PDO::FETCH_NUM);
$reviewCount = count($reviews);
if($reviewCount > 0 )
{
foreach($reviews as $row)
{
$name = $row[0];
$date = $row[1];
$rating = $row[2];
$comments = $row[3];
DisplayReview( $productID, $name, $date, $rating, $comments );
}
}
else
{
DisplayNoReviewsMsg(); 
}
}
catch(Exception $e)
{
die(print_r($e->getMessage()));
}
    DisplayWriteReviewButton( $productID );
GetSearchTerms(!null);
}

/*** Presentation and Utility Functions ***/

function BeginProductsTable($rowCount)
{
    /* Display the beginning of the search results table. */
$headings = array("Product ID", "Product Name", "Color", "Size", "Price");
echo "<table align='center' cellpadding='5'>"; 
echo "<tr bgcolor='silver'>$rowCount Results</tr><tr>";
foreach ( $headings as $heading )
{
echo "<td>$heading</td>";
}
echo "</tr>";
}

function DisplayNoProdutsMsg()
{
    echo "<h4 align='center'>No products found.</h4>";
}

function DisplayNoReviewsMsg()
{
    echo "<h4 align='center'>There are no reviews for this product.</h4>";
}

function DisplayReview( $productID, $name, $date, $rating, $comments)
{
    /* Display a product review. */
    echo "<table style='WORD-BREAK:BREAK-ALL' width='50%' align='center' border='1' cellpadding='5'>"; 
    echo "<tr>
            <td>ProductID</td>
            <td>Reviewer</td>
            <td>Date</td>
            <td>Rating</td>
          </tr>";
      echo "<tr>
              <td>$productID</td>
              <td>$name</td>
              <td>$date</td>
              <td>$rating</td>
            </tr>
            <tr>
              <td width='50%' colspan='4'>$comments</td></tr></table><br/><br/>";
}

function DisplayUploadPictureForm( $productID, $name )
{
    echo "<h3 align='center'>Upload Picture</h3>";
    echo "<h4 align='center'>$name</h4>";
    echo "<form align='center' action='adventureworks_demo_pdo.php' 
enctype='multipart/form-data' method='POST'>
<input type='hidden' name='action' value='uploadpicture'/>
<input type='hidden' name='productid' value='$productID'/>
<table align='center'>
 <tr>
   <td align='center'>
 <input id='fileName' type='file' name='file'/>
   </td>
 </tr>
 <tr>
   <td align='center'>
<input type='submit' name='submit' value='Upload Picture'/>
   </td>
 </tr>
</table>
  </form>";
}

function DisplayWriteReviewButton( $productID )
{
    echo "<table align='center'><form action='adventureworks_demo_pdo.php' 
             enctype='multipart/form-data' method='POST'>
          <input type='hidden' name='action' value='writereview'/>
          <input type='hidden' name='productid' value='$productID'/>
          <input type='submit' name='submit' value='Write a Review'/>
          </p></td></tr></form></table>";
}

function DisplayWriteReviewForm( $productID )
{
    /* Display the form for entering a product review. */
    echo "<h5 align='center'>Name, E-mail, and Rating are required fields.</h5>";
    echo "<table align='center'>
<form action='adventureworks_demo_pdo.php' 
  enctype='multipart/form-data' method='POST'>
<input type='hidden' name='action' value='submitreview'/>
<input type='hidden' name='productid' value='$productID'/>
<tr>
<td colspan='5'>Name: <input type='text' name='name' size='50'/></td>
</tr>
<tr>
<td colspan='5'>E-mail: <input type='text' name='email' size='50'/></td>
</tr>
<tr>
<td>Rating: 1<input type='radio' name='rating' value='1'/></td>
<td>2<input type='radio' name='rating' value='2'/></td>
<td>3<input type='radio' name='rating' value='3'/></td>
<td>4<input type='radio' name='rating' value='4'/></td>
<td>5<input type='radio' name='rating' value='5'/></td>
</tr>
<tr>
<td colspan='5'>
<textarea rows='20' cols ='50' name='comments'>[Write comments here.]</textarea>
</td>
</tr>
<tr>
<td colspan='5'>
<p align='center'><input type='submit' name='submit' value='Submit Review'/>
</td>
</tr>
</form>
          </table>";
}

function EndProductsTable()
{ 
    echo "</table><br/>"; 
}

function GetSearchTerms( $success )
{
    /* Get and submit terms for searching the database. */
    if (is_null( $success ))
    {
echo "<h4 align='center'>Review successfully submitted.</h4>";}
echo "<h4 align='center'>Enter search terms to find products.</h4>";
echo "<table align='center'>
<form action='adventureworks_demo_pdo.php' 
  enctype='multipart/form-data' method='POST'>
<input type='hidden' name='action' value='getproducts'/>
<tr>
   <td><input type='text' name='query' size='40'/></td>
</tr>
<tr align='center'>
   <td><input type='submit' name='submit' value='Search'/></td>
</tr>
</form>
  </table>";
}

function PopulateProductsTable( $values )
{
    /* Populate Products table with search results. */
    $productID = $values['ProductID'];
    echo "<tr>";
    foreach ( $values as $key => $value )
    {
        if ( 0 == strcasecmp( "Name", $key ) )
        {
            echo "<td><a href='?action=getreview&productid=$productID'>$value</a></td>";
        }
        elseif( !is_null( $value ) )
        {
            if ( 0 == strcasecmp( "ListPrice", $key ) )
            {
                /* Format with two digits of precision. */
                $formattedPrice = sprintf("%.2f", $value);
                echo "<td>$$formattedPrice</td>";
            }
            else
            {
                echo "<td>$value</td>";
            }
        }
        else
        {
            echo "<td>N/A</td>";
        }
    }
    echo "<td>
            <form action='adventureworks_demo_pdo.php' enctype='multipart/form-data' method='POST'>
            <input type='hidden' name='action' value='writereview'/>
            <input type='hidden' name='productid' value='$productID'/>
            <input type='submit' name='submit' value='Write a Review'/>
            </td></tr>
            </form></td></tr>";
}
?>
</body>
</html>

The photo.php script returns a product photo for a specified ProductID. This script is called from the adventureworks_demo.php script.

Put the following code in a file named photo_pdo.php:

<?php
/*
=====================================================================
This file is part of a Microsoft SQL Server Shared Source Application.
Copyright (C) Microsoft Corporation.  All rights reserved.
 
THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
=======================================================
*/
$serverName = "(local)\sqlexpress";

/* Connect using Windows Authentication. */
try
{
$conn = new PDO( "sqlsrv:server=$serverName ; Database=AdventureWorks", "", "");
$conn->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
}
catch(Exception $e)
{ 
die( print_r( $e->getMessage() ) ); 
}

/* Get the product picture for a given product ID. */
try
{
$tsql = "SELECT LargePhoto 
 FROM Production.ProductPhoto AS p
 JOIN Production.ProductProductPhoto AS q
 ON p.ProductPhotoID = q.ProductPhotoID
 WHERE ProductID = ?";
$stmt = $conn->prepare($tsql);
$stmt->execute(array(&$_GET['productId']));
$stmt->bindColumn(1, $image, PDO::PARAM_LOB, 0, PDO::SQLSRV_ENCODING_BINARY);
$stmt->fetch(PDO::FETCH_BOUND);
echo $image;
}
catch(Exception $e)
{ 
die( print_r( $e->getMessage() ) ); 
}
?>
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