(PHP 4 >= 4.0.6, PHP 5, PHP 7)
fbsql_data_seek — Move internal result pointer
$result
, int $row_number
) : boolMoves the internal row pointer of the FrontBase result associated with the specified result identifier to point to the specified row number.
The next call to fbsql_fetch_row() would return that row.
成功时返回 TRUE， 或者在失败时返回 FALSE。
Example #1 fbsql_data_seek() example
<?php
$link = fbsql_pconnect("localhost", "_SYSTEM", "secret")
or die("Could not connect");
fbsql_select_db("samp_db")
or die("Could not select database");
$query = "SELECT last_name, first_name FROM friends;";
$result = fbsql_query($query)
or die("Query failed");
// fetch rows in reverse order
for ($i = fbsql_num_rows($result) - 1; $i >=0; $i--) {
if (!fbsql_data_seek($result, $i)) {
printf("Cannot seek to row %d\n", $i);
continue;
}
if (!($row = fbsql_fetch_object($result)))
continue;
echo $row->last_name . $row->first_name . "<br />\n";
}
fbsql_free_result($result);
?>