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Příklad aplikace (ovladač SQLSRV)

Stáhnout ovladač PHP

Ukázková aplikace AdventureWorks Product Reviews je webová aplikace, která používá ovladač SQLSRV ovladačů Microsoft pro PHP pro SQL Server. Aplikace umožňuje uživateli vyhledávat produkty zadáním klíčového slova, zobrazit recenze vybraného produktu, napsat recenzi pro vybraný produkt a nahrát obrázek pro vybraný produkt.

Spuštění ukázkové aplikace

  1. Nainstalujte ovladače Microsoftu pro PHP pro SQL Server. Podrobné informace naleznete v tématu Začínáme s ovladači Microsoft pro PHP pro SQL Server.
  2. Zkopírujte kód uvedený dále v tomto dokumentu do dvou souborů: adventureworks_demo.php a photo.php.
  3. Vložte soubory adventureworks_demo.php a photo.php do kořenového adresáře webového serveru.
  4. Spusťte aplikaci spuštěním https://localhost/adventureworks_demo.php ve vašem prohlížeči.

Požadavky

Pokud chcete spustit ukázkovou aplikaci AdventureWorks Product Reviews, musí být pro váš počítač splněné následující podmínky:

  • Váš systém splňuje požadavky pro ovladače Microsoftu pro PHP pro SQL Server. Podrobné informace naleznete v tématu Systémové požadavky pro ovladače Společnosti Microsoft pro PHP pro SQL Server.
  • Soubory adventureworks_demo.php a photo.php jsou v kořenovém adresáři webového serveru. Soubory musí obsahovat kód uvedený dále v tomto dokumentu.
  • SQL Server 2005 nebo SQL Server 2008 s připojenou databází AdventureWorks2008 je nainstalován v místním počítači.
  • Nainstaluje se webový prohlížeč.

Příklad AdventureWorks

Ukázková aplikace AdventureWorks Product Reviews ukazuje následující:

  • Jak otevřít připojení k SQL Serveru pomocí ověřování systému Windows
  • Spuštění parametrizovaného dotazu pomocí sqlsrv_query
  • Příprava a spuštění parametrizovaného dotazu pomocí kombinace sqlsrv_prepare a sqlsrv_execute
  • Jak načíst data pomocí sqlsrv_fetch_array
  • Jak načíst data pomocí kombinace sqlsrv_fetch a sqlsrv_get_field
  • Jak načíst data jako datový proud
  • Jak odesílat data jako stream
  • Postup kontroly chyb

Tento příklad vrátí informace o produktu z databáze pro produkty, jejichž názvy obsahují řetězec zadaný uživatelem. V seznamu vrácených produktů může uživatel zobrazit recenze, zobrazit obrázek, nahrát obrázek a napsat recenzi pro vybraný produkt.

Do souboru s názvem adventureworks_demo.php vložte následující kód:

<!--=============  
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>

Příklad LOB

Skript photo.php vrátí fotografii produktu pro zadané ID produktu. Tento skript se volá ze skriptu adventureworks_demo.php.

Do souboru s názvem photo.php vložte následující kód:

<?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 );  
?>

Viz také

Připojení k serveru

Porovnání funkcí spouštění

Načítání dat

Aktualizace dat (ovladače Microsoftu pro PHP pro SQL Server)

Referenční informace k rozhraní API ovladače SQLSRV

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