maxdb_data_seek
maxdb_result::data_seek
(PECL maxdb >= 1.0)
maxdb_data_seek -- maxdb_result::data_seek — Adjusts the result pointer to an arbitary row in the result
Opis
Styl proceduralny
maxdb_data_seek
( resource
$result
, int $offset
) : boolStyl obiektowy
maxdb_result::data_seek
( int
$offset
) : bool
The maxdb_data_seek() function seeks to an arbitrary result pointer
specified by the offset in the result set represented by
result. The offset parameter must be between
zero and the total number of rows minus one (0..maxdb_num_rows() - 1).
Zwracane wartości
Zwraca TRUE w przypadku powodzenia, FALSE w
przypadku błędu.
Przykłady
Przykład #1 Styl obiektowy
<?php
/* Open a connection */
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$query = "SELECT name, state FROM hotel.city ORDER BY name";
if ($result = $maxdb->query( $query)) {
/* seek to row no. 10 */
$result->data_seek(10);
/* fetch row */
$row = $result->fetch_row();
printf ("City: %s State: %s\n", $row[0], $row[1]);
/* free result set*/
$result->close();
}
/* close connection */
$maxdb->close();
?>
Przykład #2 Styl proceduralny
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (!$link) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$query = "SELECT name, state FROM hotel.city ORDER BY name";
if ($result = maxdb_query($link, $query)) {
/* seek to row no. 400 */
maxdb_data_seek($result, 10);
/* fetch row */
$row = maxdb_fetch_row($result);
printf ("City: %s State: %s\n", $row[0], $row[1]);
/* free result set*/
maxdb_free_result($result);
}
/* close connection */
maxdb_close($link);
?>
Powyższy przykład wyświetli coś podobnego do:
City: Irvine State: CA
Zobacz też:
- maxdb_store_result() - Transfers a result set from the last query
- maxdb_fetch_row() - Get a result row as an enumerated array
- maxdb_num_rows() - Gets the number of rows in a result
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