GoLang mysql_data_seek

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PHP mysql_data_seek

PHP original manual for mysql_data_seek [ show | php.net ]


(PHP 4, PHP 5)

mysql_data_seekMove internal result pointer


This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:


bool mysql_data_seek ( resource $result , int $row_number )

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.



The result resource that is being evaluated. This result comes from a call to mysql_query().


The desired row number of the new result pointer.

Return Values

Returns TRUE on success or FALSE on failure.


Example #1 mysql_data_seek() example

if (!
$link) {
'Could not connect: ' mysql_error());
$db_selected mysql_select_db('sample_db');
if (!
$db_selected) {
'Could not select database: ' mysql_error());
$query 'SELECT last_name, first_name FROM friends';
$result mysql_query($query);
if (!
$result) {
'Query failed: ' mysql_error());
/* fetch rows in reverse order */
for ($i mysql_num_rows($result) - 1$i >= 0$i--) {
    if (!
mysql_data_seek($result$i)) {
"Cannot seek to row $i: " mysql_error() . "\n";

    if (!(
$row mysql_fetch_assoc($result))) {

$row['last_name'] . ' ' $row['first_name'] . "<br />\n";




The function mysql_data_seek() can be used in conjunction only with mysql_query(), not with mysql_unbuffered_query().

See Also