php簡(jiǎn)單防刷計(jì)數(shù)器

songlai

<?php
require_once('config.php');
function counter()
{
session_start();
$sql="select counter from counter";
[email=$result=@mysql_query($sql]$result=@mysql_query($sql[/email]);
if(!empty($result))
{
  $row=mysql_fetch_array($result);
  $counter=++$row[counter];
  if(!$_SESSION['counter'])
  {
   $query="update counter set counter=$counter";
   [email=$result=@mysql_query($query]$result=@mysql_query($query[/email]);
   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'>";
   }
  }
}
}
?>

來(lái)源于北京教育招生網(wǎng)