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Applicazione di esempio (driver SQLSRV)

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L'applicazione di esempio AdventureWorks Product Reviews è un'applicazione Web che usa il driver SQLSRV dei driver Microsoft per PHP per SQL Server. L'applicazione consente agli utenti di cercare i prodotti immettendo una parola chiave, visualizzare i commenti, scrivere una recensione e caricare un'immagine per un prodotto selezionato.

Esecuzione dell'applicazione di esempio

  1. Installare i driver Microsoft per PHP per SQL Server. Per informazioni dettagliate, vedere Introduzione ai driver Microsoft per PHP per SQL Server.
  2. Copiare il codice indicato più avanti in questo documento in due file: adventureworks_demo.php e photo.php.
  3. Inserire i file adventureworks_demo.php e photo.php nella directory radice del server Web.
  4. Eseguire l'applicazione avviando https://localhost/adventureworks_demo.php dal browser.

Requisiti

Per eseguire l'applicazione di esempio AdventureWorks Product Reviews, è necessario che il computer soddisfi i seguenti requisiti:

  • Il sistema soddisfa i requisiti dei driver Microsoft per PHP per SQL Server. Per informazioni dettagliate, vedere Requisiti di sistema dei driver Microsoft per PHP per SQL Server.
  • I file adventureworks_demo.php e photo.php si trovano nella directory radice del server Web. I file devono contenere il codice riportato più avanti in questo documento.
  • SQL Server 2005 o SQL Server 2008 con il database AdventureWorks2008 associato deve essere installato nel computer locale.
  • Un browser Web installato.

Esempio di AdventureWorks

L'applicazione di esempio AdventureWorks Product Reviews descrive come:

Questo esempio restituisce le informazioni del database relative ai prodotti i cui nomi contengono una stringa immessa dall'utente. Dall'elenco dei prodotti restituiti, l'utente può visualizzare le recensioni, visualizzare un'immagine, caricare un'immagine e scrivere una recensione per un prodotto selezionato.

Inserire il codice seguente in un file denominato 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   
                   procedural API (SQLSRV driver) of the Microsoft  
                   Drivers for PHP for SQL Server.</h5><br/>  
<?php  
$serverName = "(local)\sqlexpress";  
$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':  
$params = array(&$_POST['query']);  
$tsql = "SELECT ProductID, Name, Color, Size, ListPrice   
FROM Production.Product   
WHERE Name LIKE '%' + ? + '%' AND ListPrice > 0.0";  
/*Execute the query with a scrollable cursor so  
  we can determine the number of rows returned.*/  
$cursorType = array("Scrollable" => SQLSRV_CURSOR_KEYSET);  
$getProducts = sqlsrv_query($conn, $tsql, $params, $cursorType);  
if ( $getProducts === false)  
die( FormatErrors( sqlsrv_errors() ) );  
  
if(sqlsrv_has_rows($getProducts))  
{  
$rowCount = sqlsrv_num_rows($getProducts);  
BeginProductsTable($rowCount);  
while( $row = sqlsrv_fetch_array( $getProducts, SQLSRV_FETCH_ASSOC))  
{  
PopulateProductsTable( $row );  
}  
EndProductsTable();  
}  
else  
{  
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( $_GET['productid'] );  
GetReviews( $conn, $_GET['productid'] );  
sqlsrv_close( $conn );  
break;  
  
/* Write a review for a specified productID. */  
case 'writereview':  
DisplayWriteReviewForm( $_POST['productid'] );  
break;  
  
/* Submit a review to the database. */  
case 'submitreview':  
/*Prepend the review so it can be opened as a stream.*/  
$comments = "data://text/plain,".$_POST['comments'];  
$stream = fopen( $comments, "r" );  
$tsql = "INSERT INTO Production.ProductReview (ProductID,  
   ReviewerName,  
   ReviewDate,  
   EmailAddress,  
   Rating,  
   Comments)   
 VALUES (?,?,?,?,?,?)";  
$params = array(&$_POST['productid'],  
&$_POST['name'],  
date("Y-m-d"),  
&$_POST['email'],  
&$_POST['rating'],   
&$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, $_POST['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, $tsql,   
                                      array(&$_GET['productid']));  
            if( $getName === false )  
die( FormatErrors( sqlsrv_errors() ) );  
            if ( sqlsrv_fetch( $getName ) === false )  
die( FormatErrors( sqlsrv_errors() ) );  
            $name = sqlsrv_get_field( $getName, 0);  
            DisplayUploadPictureForm( $_GET['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");  
            $uploadPic = sqlsrv_prepare($conn, $tsql, array(  
                       array(&$fileStream,   
                             SQLSRV_PARAM_IN,   
                             SQLSRV_PHPTYPE_STREAM(SQLSRV_ENC_BINARY),  
                             SQLSRV_SQLTYPE_VARBINARY('max'))));  
            if( $uploadPic === false )  
die( FormatErrors( sqlsrv_errors() ) );  
            if( sqlsrv_execute($uploadPic) === false )  
die( FormatErrors( sqlsrv_errors() ) );  
  
/*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 = ?";  
  
$reslt = sqlsrv_query($conn, $tsql, array(&$photoID, &$_POST['productid']));  
if($reslt === false )  
die( FormatErrors( sqlsrv_errors() ) );  
  
GetPicture( $_POST['productid']);  
DisplayWriteReviewButton( $_POST['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."'   
      height='150' width='150'/></td></tr>";  
    echo "<tr align='center'><td><a href='?action=displaypicture&  
          productid=".$productID."'>Upload new picture.</a></td></tr>";  
    echo "</td></tr></table></br>";  
}  
  
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";  
/*Execute the query with a scrollable cursor so  
  we can determine the number of rows returned.*/  
$cursorType = array("Scrollable" => SQLSRV_CURSOR_KEYSET);  
$getReviews = sqlsrv_query( $conn, $tsql, array(&$productID), $cursorType);  
if( $getReviews === false )  
die( FormatErrors( sqlsrv_errors() ) );  
if(sqlsrv_has_rows($getReviews))  
{  
$rowCount = sqlsrv_num_rows($getReviews);  
echo "<table width='50%' align='center' border='1px'>";  
echo "<tr bgcolor='silver'><td>$rowCount Reviews</td></tr></table>";  
while ( sqlsrv_fetch( $getReviews ) )  
{  
$name = sqlsrv_get_field( $getReviews, 0 );  
$date = sqlsrv_get_field( $getReviews, 1 );  
$rating = sqlsrv_get_field( $getReviews, 2 );  
/* Open comments as a stream. */  
$comments = sqlsrv_get_field( $getReviews, 3,   
SQLSRV_PHPTYPE_STREAM(SQLSRV_ENC_CHAR));  
DisplayReview($productID,  
  $name,  
              $date,  
              $rating,  
              $comments );  
}  
}  
    else  
    {   
DisplayNoReviewsMsg();  
}  
    DisplayWriteReviewButton( $productID );  
    sqlsrv_free_stmt( $getReviews );  
}  
  
/*** 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'>";  
                 fpassthru( $comments );  
     echo "</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.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'/>  
</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.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'/>  
            </td></tr>  
            </form></td></tr>";  
}  
  
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>  

Esempio di LOB

Lo script photo.php restituisce la foto del ProductIDspecificato. Questo script viene chiamato dallo script adventureworks_demo.php.

Inserire il codice seguente in un file denominato 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)\sqlexpress";  
$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. */  
$getAsType = SQLSRV_PHPTYPE_STREAM(SQLSRV_ENC_BINARY);  
if ( sqlsrv_fetch( $stmt ) )  
{  
   $image = sqlsrv_get_field( $stmt, 0, $getAsType);  
   fpassthru($image);  
}  
else  
{  
     echo "Error in retrieving data.</br>";  
     die(print_r( sqlsrv_errors(), true));  
}  
  
/* Free the statement and connection resources. */  
sqlsrv_free_stmt( $stmt );  
sqlsrv_close( $conn );  
?>  

Vedi anche

Connessione al server

Confronto delle funzioni di esecuzione

Recupero di dati

Aggiornamento dei dati (Driver Microsoft per PHP per SQL Server)

Riferimento all'API del driver SQLSRV