php简单防刷计数器-PHP实例

2024-05-04 21:54:35

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[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...

<?php
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 "<img src='image/".$number.".gif'>";
   }
}
}
}
?>

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