mysqli_stmt_store_result

Transfers a result set from a prepared statement (PHP 5)
bool mysqli_stmt_store_result ( mysqli_stmt stmt )

Example 1581. Object oriented style

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<?php
/* Open a connection */
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {

    printf("Connect failed: %s\n", mysqli_connect_error());

    exit();

}

$query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20";

if ($stmt = $mysqli->prepare($query)) {


    /* execute query */

    $stmt->execute();


    /* store result */

    $stmt->store_result();


    printf("Number of rows: %d.\n", $stmt->num_rows);


    /* free result */

    $stmt->free_result();


    /* close statement */

    $stmt->close();

}

/* close connection */
$mysqli->close();
?>

Example 1582. Procedural style

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<?php
/* Open a connection */
$link = mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {

    printf("Connect failed: %s\n", mysqli_connect_error());

    exit();

}

$query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20";

if ($stmt = mysqli_prepare($link, $query)) {


    /* execute query */

    mysqli_stmt_execute($stmt);


    /* store result */

    mysqli_stmt_store_result($stmt);


    printf("Number of rows: %d.\n", mysqli_stmt_num_rows($stmt));


    /* free result */

    mysqli_stmt_free_result($stmt);


    /* close statement */

    mysqli_stmt_close($stmt);

}

/* close connection */
mysqli_close($link);
?>

Code Examples / Notes » mysqli_stmt_store_result

typer85

In response to the note below me for the claim that mysqli_fetch_fields is not compatible with prepared statements. This is untrue, it is but you have to do a little extra work. I would recommend you use a wrapper function of some sort to take care of the dirty business for you but the basic idea is the same. Let's assume you have a prepared statement like so. I am going to use the procedural way for simplicity but the same idea can be done using the object oriented way: <?php // Connect Blah Blah Blah. $connectionLink = mysqli_connect( .... ); // Query Blab Blah Blah. $query = "Select `Id` From `Table` Where `Id` = ?"; // Prepare Query. $prepareObject = mysqli_prepare( $connectionLink , $query ); // Bind Query. mysqli_stmt_bind_param( $prepareObject , 'i' , 1 ); // Execute Query. mysqli_stmt_execute( $prepareObject ); ?> Now all the above is fine and dandy to anyone familiar with using prepared statements, but if I want to use mysqli_fetch_fields or any other function that fetches meta information about a result set but does not work on prepared statements? Enter the special function mysqli_stmt_result_metadata. It can be used as follows, assume the following code segment immediatley follows that of the above code segment. <?php $metaData = mysqli_stmt_result_metadata( $prepareObject ); // I Can Now Call mysqli_fetch_fields using the variable // $metaData as an argument. $fieldInfo = mysqli_fetch_fields( $metaData ); // Or Even This. $fieldInfo = mysqli_num_fields( $metaData ); ?> Take a look at the Manual entry for mysqli_stmt_result_metatdata function for full details on how to expose it with prepared statements. Good Luck,

ucfirefly

fetch_fields() does not seem to be compatible with prepared statements like those used here. Makes things difficult if you're using a wildcard. I guess that's better for security in some obscure way. -Alex Boese

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