php简单防刷计数器-PHP实例

php简单防刷计数器-PHP实例

[导读] php简单防刷计数器,lt;?phprequire_once'config.php';functioncounter{nbsp;session_start;nbsp;

$sql=selectcounterfromcounter;nbsp;$result=@MySQL_query$sql;nbsp;if!empty$resultnbsp;{nbsp;$row=mysql_fetch_array$result;nbsp;$counter=++$row[co...

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 {
$number=substr($counter,$i,1);
if(isset($number))
{
echo "";
}
}
}
}
?>