fbsql_data_seek

Move internal result pointer (PHP 4 >= 4.0.6, PHP 5)
bool fbsql_data_seek ( resource result_identifier, int row_number )

说明

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 609. 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);
?>