mysql_data_seek

Description

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 a MySQL fetch function, such as mysql_fetch_assoc(), would return that row.

row_number starts at 0. The row_number should be a value in the range from 0 to mysql_num_rows() - 1. However if the result set is empty (mysql_num_rows() == 0), a seek to 0 will fail with a E_WARNING and mysql_data_seek() will return FALSE.

Parameters

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example 1. mysql_data_seek() example <?php $link = mysql_connect('localhost', 'mysql_user', 'mysql_password'); if (!$link) {     die('Could not connect: ' . mysql_error()); } $db_selected = mysql_select_db('sample_db'); if (!$db_selected) {     die('Could not select database: ' . mysql_error()); } $query = 'SELECT last_name, first_name FROM friends'; $result = mysql_query($query); if (!$result) {     die('Query failed: ' . mysql_error()); } /* fetch rows in reverse order */ for ($i = mysql_num_rows($result) - 1; $i >= 0; $i--) {     if (!mysql_data_seek($result, $i)) {         echo "Cannot seek to row $i: " . mysql_error() . "\n";         continue;     }     if (!($row = mysql_fetch_assoc($result))) {         continue;     }     echo $row['last_name'] . ' ' . $row['first_name'] . "<br />\n"; } mysql_free_result($result); ?>

Notes

See Also