jquery php ajax 投票程序源码

---

// checking whether the user has voted today:

$voted=false;

$vcheck=mysql_query(" select 1 from sort_votes
where ip='".$_server['remote_addr']."'
and date_submit=curdate()");

if(mysql_num_rows($vcheck)==1)
$voted=true;

// if we are not on the data.php?results page:
if(!array_key_exists('results',$_get))
{
echo '

';

// showing the tutorials by random
$res = mysql_query("select * from sort_objects order by rand()");

while($row=mysql_fetch_assoc($res))
{?>


• 
  
  
  

  
  
  

  
  

  
  
  

  
  
  

  
  
  

  
  

  
  
  
  

}
else require "results.php";
// the above require saves us from having to style another separate page

?>

results.php

if($_post['sortdata'])
{
// the data arrives as a comma-separated string,
// so we extract each post ids:
$data=explode(',',str_replace('li','',$_post['sortdata']));

// getting the number of objects
list($tot_objects) = mysql_fetch_array(mysql_query("select count(*) from sort_objects"));

if(count($data)!=$tot_objects) die("wrong data!");

foreach($data as $k=>$v)
{
// building the sql query:
$str[]='('.(int)$v.','.($tot_objects-$k).')';
}

$str = 'values'.join(',',$str);

// this will limit voting to once a day per ip:
mysql_query(" insert into `sort_votes` (ip,date_submit,dt_submit)
values ('".$_server['remote_addr']."',now(),now())");

// if the user has not voted before today:
if(mysql_affected_rows($link)==1)
{
mysql_query(' insert into `sort_objects` (id,votes) '.$str.'
on duplicate key update votes = votes+values(votes)');
}
}

// selecting the sample tutorials and ordering
// them by the votes each of them received:
$res = mysql_query("select * from sort_objects order by votes desc");

$maxvote=0;
$bars=array();

while($row=mysql_fetch_assoc($res))
{
$bars[]=$row;

// storing the max vote, so we can scale the bars of the chart:
if($row['votes']>$maxvote) $maxvote = $row['votes'];
}

$barstr='';

// the colors of the bars:
$colors=array('#ff9900','#66cc00','#3399cc','#dd0000','#800080');

foreach($bars as $k=>$v)
{
// buildling the bar string:
$barstr.='

';
}

// the total number of votes cast in the poll:
list($totvotes) = mysql_fetch_array(mysql_query("select count(*) from sort_votes"));

?>

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