Php/docs/function.fbsql-data-seek
fbsql_data_seek
(PHP 4 >= 4.0.6, PHP 5 < 5.3.0)
fbsql_data_seek — Move internal result pointer
说明
fbsql_data_seek
( resource $result
, int $row_number
) : bool
Moves the internal row pointer of the FrontBase result associated with the specified result identifier to point to the specified row number.
The next call to fbsql_fetch_row() would return that row.
返回值
成功时返回 true， 或者在失败时返回 false。
范例
Example #1 fbsql_data_seek() example
<?php$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($query) or die("Query failed");// fetch rows in reverse orderfor ($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);?>
