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Exemplo de Aplicação (Driver SQLSRV)

Descarregar o driver PHP

A aplicação de exemplo AdventureWorks Product Reviews é uma aplicação Web que utiliza o driver SQLSRV dos Microsoft Drivers para PHP para SQL Server. A aplicação permite ao utilizador pesquisar produtos introduzindo uma palavra-chave, ver avaliações de um produto selecionado, escrever uma avaliação de um produto selecionado e carregar uma imagem de um produto selecionado.

Execução da Aplicação de Exemplo

  1. Instale os drivers Microsoft para PHP para SQL Server. Para informações detalhadas, consulte Começar com os Microsoft Drivers para PHP para SQL Server.
  2. Copie o código listado mais adiante neste documento para dois ficheiros: adventureworks_demo.php e photo.php.
  3. Coloca os ficheiros adventureworks_demo.php e photo.php na pasta raiz do teu servidor Web.
  4. Executa a aplicação começando https://localhost/adventureworks_demo.php pelo teu navegador.

Requerimentos

Para executar a aplicação de exemplo AdventureWorks Product Reviews, o seguinte deve ser verdade para o seu computador:

  • O seu sistema cumpre os requisitos dos drivers Microsoft para PHP para SQL Server. Para informações detalhadas, consulte Requisitos de Sistema para os Controladores Microsoft para PHP para SQL Server.
  • Os ficheiros adventureworks_demo.php e photo.php estão no diretório raiz do teu servidor Web. Os ficheiros devem conter o código listado mais adiante neste documento.
  • O SQL Server 2005 ou SQL Server 2008, com a base de dados AdventureWorks2008 anexada, está instalado no computador local.
  • Está instalado um navegador Web.

Exemplo do AdventureWorks

A aplicação de exemplo AdventureWorks Product Reviews demonstra o seguinte:

  • Como abrir uma ligação ao SQL Server usando a Autenticação do Windows.
  • Como executar uma consulta parametrizada com sqlsrv_query.
  • Como preparar e executar uma consulta parametrizada usando a combinação de sqlsrv_prepare e sqlsrv_execute.
  • Como recuperar dados usando sqlsrv_fetch_array.
  • Como recuperar dados usando a combinação de sqlsrv_fetch e sqlsrv_get_field.
  • Como recuperar dados em fluxo.
  • Como enviar dados em fluxo.
  • Como verificar erros.

Este exemplo devolve informações de produto da base de dados para produtos cujos nomes contêm uma string introduzida pelo utilizador. A partir da lista de produtos devolvidos, o utilizador pode ver avaliações, ver uma imagem, carregar uma imagem e escrever uma avaliação para um produto selecionado.

Coloque o seguinte código num ficheiro chamado 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  
{  
DisplayNoProductsMsg();  
}  
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 DisplayNoProductsMsg()  
{  
    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>

Exemplo de LOB

O script photo.php devolve uma foto do produto para um ProductID especificado. Este script é chamado do script adventureworks_demo.php.

Coloque o seguinte código num ficheiro chamado 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 );  
?>

Ver também

Ligação ao Servidor

Comparação de Funções de Execução

Recuperação de Dados

Atualização de Dados (Microsoft Drivers para PHP para SQL Server)

Referência da API do Driver SQLSRV

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