fbsql_data_seek

(PHP 4 >= 4.0.6, PHP 5)

fbsql_data_seek — Move internal result pointer

설명

bool fbsql_data_seek ( resource $result , int $row_number )

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.

인수

result: fbsql_query()나 fbsql_db_query()가 반환한 결과셋 식별자.
row_number: The row number. Starts at 0.

반환값

성공할 경우 TRUE를, 실패할 경우 FALSE를 반환합니다.

예제

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);
?>