mysql_data_seek

(PHP 3, PHP 4 >= 4.0.0)

mysql_data_seek -- Move internal result pointer

Description

bool mysql_data_seek ( resource result_identifier, int row_number)

Returns TRUE on success, FALSE on failure.

mysql_data_seek() moves the internal row pointer of the MySQL result associated with the specified result identifier to point to the specified row number. The next call to mysql_fetch_row() would return that row.

Row_number starts at 0.

Example 1. MySQL data seek example

<?php
    $link = mysql_pconnect("kron", "jutta", "geheim")
        or die("Could not connect");

    mysql_select_db("samp_db")
        or exit("Could not select database");

    $query = "SELECT last_name, first_name FROM friends";
    $result = mysql_query($query)
        or die("Query failed");

    // fetch rows in reverse order

    for ($i = mysql_num_rows($result) - 1; $i >=0; $i--) {
        if (!mysql_data_seek($result, $i)) {
            echo "Cannot seek to row $i\n";
            continue;
        }

        if(!($row = mysql_fetch_object($result)))
            continue;

        echo "$row->last_name $row->first_name<br />\n";
    }

    mysql_free_result($result);
?>