» google_pagerank()
  » preg_replace()
  » site_pageranks()
  » imagecreatefrompng()
  » htmlentities()
  » imagepng()
  » imagestring()
  » imagedestroy()
  » preg_match()
  » imagecolorallocate()
  » header()
  » fopen()
  » getimagesize()
  » session_start()
  » strstr()
  » preg_match_all()
  » strpos()
  » ob_start()
  » ob_flush()
  » flush()
  » str_replace()
  » array2vars()
  » nl2br()
  » htmlspecialchars()
  » setcookie()
  » urlencode()
  » preg_split()
  » ereg()
  » ereg_replace()
  » var_dump()

 » Powerpointing
 » Rock Music Community - meet fans
 » Business Strategy

Become a sponsor for $15/month. Link is sitewide - PR5 homepage, 20+ PR4 pages, 90+ PR3 pages. Email dave[AT]icemelon[D0T]c0m.

(PHP 3, PHP 4, PHP 5)

mysql_data_seek -- Move internal result pointer

Description

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 mysql_fetch_row() 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

result

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

row_number

The desired row number of the new result pointer.

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

Related Function(s)

mysql_fetch_row()

mysql_num_rows()

mysql_query()

mysql_unbuffered_query()

mysql_fetch_assoc()

mysql_fetch_array()

mysql_fetch_object()