fbsql_data_seek
(PHP 4 >= 4.0.6, PHP 5)
fbsql_data_seek -- Move internal result pointer
说明
bool
fbsql_data_seek ( resource result_identifier, int row_number )
如果成功则返回 TRUE，失败则返回 FALSE。
fbsql_data_seek() 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.
Row_number starts at 0.
例子 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);
?>
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