mysqli_stmt_data_seek
(PHP 5)
mysqli_stmt_data_seek
(no version information, might be only in CVS)
stmt->data_seek -- Seeks to an arbitray row in statement result set
Description
Procedural style:
bool
mysqli_stmt_data_seek ( object statement, int offset)
Object oriented style (method):
class
stmt {
bool
data_seek ( int offset)
}
The mysqli_stmt_data_seek() function seeks to an arbitrary result pointer
specified by the offset in the statement result set represented by
statement. The offset parameter must be between
zero and the total number of rows minus one (0..mysqli_stmt_num_rows() - 1).
Return values
如果成功则返回 TRUE，失败则返回 FALSE。
Example
例子 1. 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();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name";
if ($stmt = $mysqli->prepare($query)) {
/* execute query */
$stmt->execute();
/* bind result variables */
$stmt->bind_result($name, $code);
/* store result */
$stmt->store_result();
/* seek to row no. 400 */
$stmt->data_seek(399);
/* fetch values */
$stmt->fetch();
printf ("City: %s Countrycode: %s\n", $name, $code);
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>
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例子 2. Procedural style
<?php
/* Open a connection */
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name";
if ($stmt = mysqli_prepare($link, $query)) {
/* execute query */
mysqli_stmt_execute($stmt);
/* bind result variables */
mysqli_stmt_bind_result($stmt, $name, $code);
/* store result */
mysqli_stmt_store_result($stmt);
/* seek to row no. 400 */
mysqli_stmt_data_seek($stmt, 399);
/* fetch values */
mysqli_stmt_fetch($stmt);
printf ("City: %s Countrycode: %s\n", $name, $code);
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
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The above examples would produce the following output:
City: Benin City Countrycode: NGA |