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PHP Quiz PHP CertificatePHP mysql_data_seek() Function
Complete PHP MySQL Reference
Definition and Usage
The mysql_data_seek() function moves the internal row pointer.
The internal row pointer is the current row position in a result returned by the mysql_query() function.
This function returns TRUE on success, or FALSE on failure.
Syntax
mysql_data_seek(data,row)
| Parameter | Description |
|---|---|
| data | Required. Specifies which data pointer to use. The data pointer is the result from the mysql_query() function |
| row | Required. Specifies which record to move to. 0 indicates the first record |
Tips and Notes
Note: This function can only be used with mysql_query(), and not mysql_unbuffered_query().
Example
<?php
$con = mysql_connect("localhost", "peter", "abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
$db_selected = mysql_select_db("test_db",$con);
$sql = "SELECT * from Person";
$result = mysql_query($sql,$con);
print_r(mysql_fetch_row($result));
mysql_data_seek($result,3);
print_r(mysql_fetch_row($result));
mysql_close($con);
?>
$con = mysql_connect("localhost", "peter", "abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
$db_selected = mysql_select_db("test_db",$con);
$sql = "SELECT * from Person";
$result = mysql_query($sql,$con);
print_r(mysql_fetch_row($result));
mysql_data_seek($result,3);
print_r(mysql_fetch_row($result));
mysql_close($con);
?>
The output of the code above could be:
Array
(
[0] => Refsnes
[1] => Kai Jim
[2] => Taugata
)
Array
(
[0] => Refsnes
[1] => Ståle
[2] => Sandnes
)
(
[0] => Refsnes
[1] => Kai Jim
[2] => Taugata
)
Array
(
[0] => Refsnes
[1] => Ståle
[2] => Sandnes
)
Complete PHP MySQL Reference
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