MySQL and PHP Reference :: 3 MySQL Improved Extension (Mysqli) :: 3.11 The mysqli_result class (mysqli_result) :: 3.11.2 mysqli_result::data_seek, mysqli_data_seek

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3.11.2. `mysqli_result::data_seek`, `mysqli_data_seek`

mysqli_result::data_seek
mysqli_data_seek
Adjusts the result pointer to an arbitrary row in the result

Description

Object oriented style

bool mysqli_result::data_seek(int offset);

Procedural style

bool mysqli_data_seek(mysqli_result result,
                      int offset);

The mysqli_data_seek function seeks to an arbitrary result pointer specified by the offset in the result set.

Parameters

result: Procedural style only: A result set identifier returned by mysqli_query, mysqli_store_result or mysqli_use_result.
offset: The field offset. Must be between zero and the total number of rows minus one (0..mysqli_num_rows - 1).

Return Values

Returns TRUE on success or FALSE on failure.

Notes

Note

This function can only be used with buffered results attained from the use of the mysqli_store_result or mysqli_query functions.

Examples

Example 3.108. Object oriented style

<?php
/* Open a connection */
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name";
if ($result = $mysqli->query( $query)) {
    /* seek to row no. 400 */
    $result->data_seek(399);
    /* fetch row */
    $row = $result->fetch_row();
    printf ("City: %s  Countrycode: %s\n", $row[0], $row[1]);
    /* free result set*/
    $result->close();
}
/* close connection */
$mysqli->close();
?>

Example 3.109. Procedural style

<?php
/* Open a connection */
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (!$link) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name";
if ($result = mysqli_query($link, $query)) {
    /* seek to row no. 400 */
    mysqli_data_seek($result, 399);
    /* fetch row */
    $row = mysqli_fetch_row($result);
    printf ("City: %s  Countrycode: %s\n", $row[0], $row[1]);
    /* free result set*/
    mysqli_free_result($result);
}
/* close connection */
mysqli_close($link);
?>

The above examples will output: