PHP Simple anti-brush counter _php tutorial

Require_once (' config.php ');
function counter ()
{
Session_Start ();
$sql = "Select counter from Counter";
$result = @mysql_query ($sql);
if (!empty ($result))
{
$row =mysql_fetch_array ($result);
$counter =++ $row [counter];
if (!$_session[' counter ')
{
$query = "Update counter set counter= $counter";
$result = @mysql_query ($query);
if ($result)
{
$_session[' counter ']=true;
}
}
$counter _len=strlen ($counter);
for ($i =0; $i < $counter _len; $i + +)
{
$number =substr ($counter, $i, 1);
if (Isset ($number))
{
echo "";
}
}
}
}
?>

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