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mysqli_stmt::data_seek
(PHP 5)
mysqli_stmt::data_seek -- mysqli_stmt_data_seek — Seeks to an arbitrary row in statement result set
Beschreibung
Object oriented style (method):
void mysqli_stmt::data_seek
( int $offset
)
Procedural style:
void mysqli_stmt_data_seek
( mysqli_stmt $stmt
, int $offset
)
Seeks to an arbitrary result pointer in the statement result set.
mysqli_stmt_store_result() must be called prior to mysqli_stmt_data_seek().
Parameter-Liste
- stmt
-
Nur bei prozeduralem Aufruf: ein von mysqli_stmt_init() zurückgegebens Statementobjekt.
- offset
-
Must be between zero and the total number of rows minus one (0.. mysqli_stmt_num_rows() - 1).
Rückgabewerte
Es wird kein Wert zurückgegeben.
Beispiele
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/* 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();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name";
if ($stmt = $mysqli->prepare($query)) {
/* execute query */
$stmt->execute();
/* bind result variables */
$stmt->bind_result($name, $code);
/* store result */
$stmt->store_result();
/* seek to row no. 400 */
$stmt->data_seek(399);
/* fetch values */
$stmt->fetch();
printf("City: %s Countrycode: %s\n", $name, $code);
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
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/* 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();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name";
if ($stmt = mysqli_prepare($link, $query)) {
/* execute query */
mysqli_stmt_execute($stmt);
/* bind result variables */
mysqli_stmt_bind_result($stmt, $name, $code);
/* store result */
mysqli_stmt_store_result($stmt);
/* seek to row no. 400 */
mysqli_stmt_data_seek($stmt, 399);
/* fetch values */
mysqli_stmt_fetch($stmt);
printf("City: %s Countrycode: %s\n", $name, $code);
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
City: Benin City Countrycode: NGA