Exemple d'application
L'exemple d'application AdventureWorks Product Reviews est une application Web qui illustre les fonctionnalités du Pilote SQL Server pour PHP. L'application permet à un utilisateur de rechercher des produits en entrant un mot clé, de consulter et d'écrire des comparatifs pour un produit sélectionné, et de télécharger une image pour un produit sélectionné.
Exécution de l'exemple d'application
Installez le Pilote SQL Server pour PHP. Pour des informations détaillées, consultez Mise en route.
Copiez le code répertorié plus loin dans ce document dans deux fichiers : adventureworks_demo.php et photo.php.
Copiez les fichiers adventureworks_demo.php et photo.php dans le répertoire racine de votre serveur Web.
Exécutez l'application en démarrant https://localhost/adventureworks_demo.php depuis votre navigateur.
Configuration requise
Pour exécuter l'exemple d'application AdventureWorks Product Reviews, votre ordinateur doit satisfaire aux critères suivants :
- La configuration de votre système correspond au Pilote SQL Server pour PHP. Pour des informations détaillées, consultez Configuration requise (Pilote SQL Server pour PHP).
- Les fichiers adventureworks_demo.php et photo.php sont dans le répertoire racine de votre serveur Web. Les fichiers doivent contenir le code répertorié dans ce document.
- SQL Server 2005 ou SQL Server 2008 et la base de données AdventureWorks jointe sont installés sur l'ordinateur local.
- Un navigateur Web est installé.
Montre
L'exemple d'application AdventureWorks Product Reviews illustre les informations suivantes :
- Comment ouvrir une connexion à SQL Server à l'aide de l'authentification Windows.
- Comment exécuter une requête paramétrable à l'aide de sqlsrv_query.
- Comment préparer et exécuter une requête paramétrable à l'aide de la combinaison de sqlsrv_prepare et sqlsrv_execute.
- Comment récupérer des données à l'aide de sqlsrv_fetch_array.
- Comment récupérer des données à l'aide de la combinaison de sqlsrv_fetch et sqlsrv_get_field.
- Comment récupérer des données sous forme de flux.
- Comment envoyer des données sous forme de flux.
- Comment rechercher des erreurs.
Exemple
L'exemple de l'application AdventureWorks Product Reviews retourne des informations sur les produits à partir de la base de données des produits dont les noms contiennent une chaîne entrée par l'utilisateur. Dans la liste des produits retournés, l'utilisateur peut consulter des comparatifs, voir et télécharger une image et écrire un comparatif pour un produit sélectionné.
Copiez le code suivant dans un fichier nommé adventureworks_demo.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 the 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
Microsoft SQL Server 2005 Driver for PHP.</h5><br/>
<?php
$serverName = "(local)";
$connectionOptions = array("Database"=>"AdventureWorks");
/* Connect using Windows Authentication. */
$conn = sqlsrv_connect( $serverName, $connectionOptions);
if( $conn === false )
{ die( FormatErrors( sqlsrv_errors() ) ); }
if(isset($_REQUEST['action']))
{
switch( $_REQUEST['action'] )
{
/* Get AdventureWorks products by querying against the
product name.*/
case 'getproducts':
$query = $_REQUEST['query'];
$tsql = "SELECT ProductID, Name, Color, Size, ListPrice
FROM Production.Product
WHERE Name LIKE '%' + ? + '%' AND ListPrice > 0.0";
$getProducts = sqlsrv_query( $conn,
$tsql,
array( $query ));
if ( $getProducts === false)
{ die( FormatErrors( sqlsrv_errors() ) ); }
$headings = array("Product ID",
"Product Name",
"Color",
"Size",
"Price");
BeginProductsTable( "Query Results", $headings );
$productCount = 0;
while( $row = sqlsrv_fetch_array( $getProducts,
SQLSRV_FETCH_ASSOC))
{
PopulateProductsTable( $row );
$productCount++;
}
EndProductsTable();
if ( $productCount == 0 )
{
DisplayNoProdutsMsg();
}
GetSearchTerms( !null );
/* Free the statement and connection resources. */
sqlsrv_free_stmt( $getProducts );
sqlsrv_close( $conn );
break;
/* Get reviews for a specified productID. */
case 'getreview':
GetPicture( $_REQUEST['productid'] );
GetReviews( $conn, $_REQUEST['productid'] );
sqlsrv_close( $conn );
break;
/* Write a review for a specified productID. */
case 'writereview':
DisplayWriteReviewForm( $_REQUEST['productid'] );
break;
/* Submit a review to the database. */
case 'submitreview':
/*Prepend the review so it can be opened as a stream.*/
$comments = "data://text/plain,".$_REQUEST['comments'];
$stream = fopen( $comments, "r" );
$tsql = "INSERT INTO Production.ProductReview (ProductID,
ReviewerName,
ReviewDate,
EmailAddress,
Rating,
Comments)
VALUES (?,?,?,?,?,?)";
$params = array(&$_REQUEST['productid'],
&$_REQUEST['name'],
date("Y-m-d"),
&$_REQUEST['email'],
&$_REQUEST['rating'],
&$stream);
/* Prepare and execute the statement. */
$insertReview = sqlsrv_prepare($conn, $tsql, $params);
if( $insertReview === false )
{ die( FormatErrors( sqlsrv_errors() ) ); }
/* By default, all stream data is sent at the time of
query execution. */
if( sqlsrv_execute($insertReview) === false )
{ die( FormatErrors( sqlsrv_errors() ) ); }
sqlsrv_free_stmt( $insertReview );
GetSearchTerms( true );
/*Display a list of reviews, including the latest addition. */
GetReviews( $conn, $_REQUEST['productid'] );
sqlsrv_close( $conn );
break;
/* Display a picture of the selected product.*/
case 'displaypicture':
$tsql = "SELECT Name
FROM Production.Product
WHERE ProductID = ?";
$getName = sqlsrv_query($conn, $tsql,
array($_REQUEST['productid']));
if( $getName === false )
{ die( FormatErrors( sqlsrv_errors() ) ); }
if ( sqlsrv_fetch( $getName ) === false )
{ die( FormatErrors( sqlsrv_errors() ) ); }
$name = sqlsrv_get_field( $getName, 0);
DisplayUploadPictureForm( $_REQUEST['productid'], $name );
sqlsrv_close( $conn );
break;
/* Upload a new picture for the selected product. */
case 'uploadpicture':
$tsql = "INSERT INTO Production.ProductPhoto (LargePhoto)
VALUES (?); SELECT SCOPE_IDENTITY() AS PhotoID";
$fileStream = fopen($_FILES['file']['tmp_name'], "r");
/* Turn off the default behavior of sending all stream data
to the server at the time of query execution. */
$options = array("SendStreamParamsAtExec"=>0);
$uploadPic = sqlsrv_prepare($conn, $tsql, array(
array(&$fileStream,
SQLSRV_PARAM_IN,
SQLSRV_PHPTYPE_STREAM(SQLSRV_ENC_BINARY),
SQLSRV_SQLTYPE_VARBINARY('max'))),
$options);
if( $uploadPic === false )
{ die( FormatErrors( sqlsrv_errors() ) );}
if( sqlsrv_execute($uploadPic) === false )
{ die( FormatErrors( sqlsrv_errors() ) ); }
/* Stream data to the database in chunks. */
while( $success = sqlsrv_send_stream_data( $uploadPic))
{
}
/*Skip the open result set (row affected). */
$next_result = sqlsrv_next_result($uploadPic);
if( $next_result === false )
{ die( FormatErrors( sqlsrv_errors() ) ); }
/* Fetch the next result set. */
if( sqlsrv_fetch($uploadPic) === false)
{ die( FormatErrors( sqlsrv_errors() ) ); }
/* Get the first field - the identity from INSERT. */
$photoID = sqlsrv_get_field($uploadPic, 0);
/* Associate the new photoID with the productID. */
$tsql = "UPDATE Production.ProductProductPhoto
SET ProductPhotoID = ?
WHERE ProductID = ?";
if( sqlsrv_query($conn, $tsql, array($photoID,
$_REQUEST['productid'])) === false )
{ die( FormatErrors( sqlsrv_errors() ) ); }
GetPicture( $_REQUEST['productid']);
DisplayWriteReviewButton( $_REQUEST['productid'] );
GetSearchTerms (!null);
sqlsrv_close( $conn );
break;
}//End Switch
}
else
{
GetSearchTerms( !null );
}
function GetPicture( $productID )
{
echo "<table align='center'><tr align='center'><td>";
echo "<img src='photo.php?productId=".$productID."'/></td></tr>";
echo "<tr align='center'><td><a href='?action=displaypicture&
productid=".$productID."'>Upload new picture.</a></td></tr>";
echo "</td></tr></table>
";
}
function GetReviews( $conn, $productID )
{
$tsql = "SELECT ReviewerName,
CONVERT(varchar(32), ReviewDate, 107) AS [ReviewDate],
Rating,
Comments
FROM Production.ProductReview
WHERE ProductID = ?
ORDER BY ReviewDate DESC";
$getReview = sqlsrv_query( $conn, $tsql, array($productID));
if ( $getReview === false )
{ die( FormatErrors( sqlsrv_errors() ) ); }
$reviewCount = 0;
while ( sqlsrv_fetch( $getReview ) )
{
$name = sqlsrv_get_field( $getReview, 0 );
$date = sqlsrv_get_field( $getReview, 1 );
$rating = sqlsrv_get_field( $getReview, 2 );
/* Open comments as a stream. */
$comments = sqlsrv_get_field( $getReview, 3,
SQLSRV_PHPTYPE_STREAM(SQLSRV_ENC_CHAR));
DisplayReview( $productID,
$name,
$date,
$rating,
$comments );
$reviewCount++;
}
if( $reviewCount == 0 )
{ DisplayNoReviewsMsg(); }
DisplayWriteReviewButton( $productID );
sqlsrv_free_stmt( $getReview );
}
/*** Presentation and Utility Functions ***/
function BeginProductsTable( $tableName, $headings )
{
/* Display the beginning of the search results table. */
echo "<table align='center' cellpadding='5'>";
echo "<tr bgcolor='silver'>$tableName</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'>";
fpassthru( $comments );
echo "</td></tr></table>
";
}
function DisplayUploadPictureForm( $productID, $name )
{
echo "<h3 align='center'>Upload Picture</h3>";
echo "<h4 align='center'>$name</h4>";
echo "<form align='center' action='adventureworks_demo.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( $productID )
{
echo "<table align='center'><form action='adventureworks_demo.php'
enctype='multipart/form-data' method='POST'>
<input type='hidden' name='action' value='writereview'/>
<input type='hidden' name='productid' value='$productID'/>
<input type='submit' name='submit' value='Write a Review'/>
</p></td></tr></form></table>";
}
function DisplayWriteReviewForm( $productID )
{
/* Display the form for entering a product review. */
echo "<h5 align='center'>
Name, E-mail, and Rating are required fields.
</h5>";
echo "<table align='center'>
<form action='adventureworks_demo.php'
enctype='multipart/form-data' method='POST'>
<input type='hidden' name='action' value='submitreview'/>
<input type='hidden' name='productid' value='$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'/>
</p>
</td>
</tr>
</form>
</table>";
}
function EndProductsTable()
{
echo "</table>
";
}
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.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>$value</td>";
}
}
else
{
echo "<td>N/A</td>";
}
}
echo "<td>
<form action='adventureworks_demo.php'
enctype='multipart/form-data' method='POST'>
<input type='hidden' name='action' value='writereview'/>
<input type='hidden' name='productid' value='$productID'/>
<input type='submit' name='submit'
value='Write a Review'/></p>
</td></tr>
</form></td></tr>";
}
function RoundPrice( $value )
{
/* Remove precision (last two zeros) from list price. */
return substr( $value, 0, -2 );
}
function FormatErrors( $errors )
{
/* Display errors. */
echo "Error information: <br/>";
foreach ( $errors as $error )
{
echo "SQLSTATE: ".$error['SQLSTATE']."<br/>";
echo "Code: ".$error['code']."<br/>";
echo "Message: ".$error['message']."<br/>";
}
}
?>
</body>
</html>
Le script photo.php retourne une photo de produit pour un ProductID spécifié. Ce script est appelé depuis le script adventureworks_demo.php.
Copiez le code suivant dans un fichier nommé photo.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)";
$connectionInfo = array( "Database"=>"AdventureWorks");
/* Connect using Windows Authentication. */
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn === false )
{
echo "Could not connect.\n";
die( print_r( sqlsrv_errors(), true));
}
/* Get the product picture for a given product ID. */
$tsql = "SELECT LargePhoto
FROM Production.ProductPhoto AS p
JOIN Production.ProductProductPhoto AS q
ON p.ProductPhotoID = q.ProductPhotoID
WHERE ProductID = ?";
$params = array($_REQUEST['productId']);
/* Execute the query. */
$stmt = sqlsrv_query($conn, $tsql, $params);
if( $stmt === false )
{
echo "Error in statement execution.</br>";
die( print_r( sqlsrv_errors(), true));
}
/* Retrieve the image as a binary stream. */
if ( sqlsrv_fetch( $stmt ) )
{
$image = sqlsrv_get_field( $stmt, 0,
SQLSRV_PHPTYPE_STREAM(SQLSRV_ENC_BINARY));
fpassthru($image);
}
else
{
echo "Error in retrieving data.</br>";
die(print_r( sqlsrv_errors(), true));
}
/* Free the statement and connectin resources. */
sqlsrv_free_stmt( $stmt );
sqlsrv_close( $conn );
?>
Voir aussi
Concepts
Comparaison des fonctions de récupération des données
Autres ressources
Connexion au serveur
Comparaison des fonctions d'exécution
Récupération des données
Mise à jour des données (pilote SQL Server pour PHP)
Référence de l'API (Pilote SQL Server pour PHP)