Function.mysqli-stmt-num-rows

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mysqli_stmt_num_rows

(PHP 5)

mysqli_stmt_num_rows

(no version information, might be only in CVS)

stmt->num_rows -- Return the number of rows in statements result set.

Inhaltsverzeichnis

Description

mixed mysqli_stmt_num_rows ( object stmt)
</BR >class stmt {
</BR >int num_rows
</BR >}

Returns the number of rows in the result set. The use of mysqli_stmt_num_rows() depends on whether or not you used function.mysqli-stmt-store-result to buffer the entire result set in the statement handle.

If you use function.mysqli-stmt-store-result, mysqli_stmt_num_rows() may be called immediately.


Return values

An integer representing the number of rows in result set.


See also

function.mysqli-stmt-affected-rows, function.mysqli-prepare, function.mysqli-stmt-store-result


Example


Beispiel 1. Object oriented style

<?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);

    /* close statement */
    $stmt->close();
}

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

Beispiel 2. Procedural style

<?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));

    /* close statement */
    mysqli_stmt_close($stmt);
}

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

The above examples would produce the following output: 

Number of rows: 20.
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