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mysqli_data_seek (PHP 5) mysqli_data_seek (no version information, might be only in CVS) result->data_seek -- Adjusts the result pointer to an arbitary row in the result DescriptionProcedural style: bool mysqli_data_seek ( mysqli_result result, int offset ) Object oriented style (method): class mysqli_result { bool data_seek ( int offset ) }
The mysqli_data_seek() function seeks to an arbitrary result pointer
specified by the offset in the result set represented by
result. The offset parameter must be between
zero and the total number of rows minus one (0..mysqli_num_rows() - 1).
返回值
若果成功則返回 TRUE,失敗則返回 FALSE。
範例例子 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(); }
$query = "SELECT Name, CountryCode FROM City ORDER BY Name"; if ($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(); ?>
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例子 2. Procedural style
<?php /* Open a connection */ $link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */ if (!$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); ?>
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上例將輸出: City: Benin City Countrycode: NGA |
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