simpel poll systeempje

nuet

Allereerst maken we een settingspagina waarin we onze eigen pollopties aan kunnen geven.

settings.php

<?php

// SETTINGS
$quickpolloptions = ['Mozilla', 'Chrome', 'Opera', 'IE', 'Safari']; // bepaal hier je eigen pollopties
$quickpolltype = "checkbox"; // kies "radio" of "checkbox"; radio is enkele keus, checkbox is meerdere keuzes
$quickpollheader = "Wat is je favoriete browser?"; // de vraagstelling of koptekst

// RESET de POLL:
// Reset resultaten: verwijder bestand "vote_result.txt" in map data
// Reset ip address van users: verwijder bestand "user_ip.txt" in map data

?>

De Pollform: form.php

<?php
include('settings.php');
?>

<!-- RADIO VOTE / CHECKBOX VOTE-->

   <div id="form" class="quickpollwrapper">
      <p><?php echo $quickpollheader; ?></p>
	   <form method="post" id="quickpoll">
	    <table>
	       <tr class="radiohidden">
		  <td><input type="radio" name="radiovotehidden" value="0" checked></td>
	       </tr>
	    <?php
	    
	       foreach ($quickpolloptions as $key => $value) {
		  
		  if($quickpolltype == "radio") {
		  
		     echo "<tr>";
			echo "<td>";
			   echo "<label>$value</label>";
			echo "</td>";
			echo "<td>";
			   echo "<input class='quickpollinput' type='radio' name='radiovote' value='$key'><br>";
			echo "</td>";
		     echo "</tr>";
		  }
		  elseif($quickpolltype == "checkbox") {
		     echo "<tr>";
			echo "<td>";
			   echo "<label>$value</label>";
			echo "</td>";
			echo "<td>";
			   echo "<input class='quickpollinput' type='checkbox' name='checkboxvote[]' value='$key'><br>";
			echo "</td>";
		     echo "</tr>";
		  }
	       }
	       
	    ?>
	    </table>
       <input class="quickpollsubmit" type="submit" value="View / Vote">
	   </form>
   </div>

Idereen kan maar 1 keer stemmen, daarvoor slaan we het IP adres op van degene die stemt. Dit slaan we op in een gewoon .txt bestandje

quickpoll_vote.php

<?php  
include('settings.php');
   
if($_POST)
{

   // grab users IP address
   $ipAddress = $_SERVER['REMOTE_ADDR'];
   
   $UserIptxt = $ipAddress."||";
   $all_ips = explode("||", file_get_contents("data/user_ip.txt"));
   if ( ! in_array($ipAddress, $all_ips) ) {
      // put the ip address in .txt file
      file_put_contents("data/user_ip.txt", $UserIptxt, FILE_APPEND);
      echo '<div class="votingsuccess">Thanks for voting!</div>';
   }
   else {
    echo '<div class="alreadyvoted">You have already voted!</div>';
   }

Vervolgens slaan we de gestemde data ook op in een gewoon .txt bestandje:

quickpoll_vote.php (vervolg)

$result_file = "data/vote_result.txt";
    
   if (file_exists($result_file)) {
       $results = explode(',', file_get_contents('data/vote_result.txt'));
   } else {
       // start with zeros if you don't have a file yet
       $results = array_fill(0, count($quickpolloptions), 0);
   }
   
   // if IP address is not yet stored
   if ( ! in_array($ipAddress, $all_ips) ) {
   
     if($quickpolltype == "radio") { 
       if (isset($_POST['radiovote'])) {
	   
	   $results[$_POST['radiovote']]++;
	   file_put_contents('data/vote_result.txt', implode(',', $results));
       }
     }
     elseif($quickpolltype == "checkbox") {
       if (isset($_POST['checkboxvote'])) {
	 foreach ($_POST['checkboxvote'] as $checkbox) {
	  $results[$checkbox]++;
	 }
	 file_put_contents('data/vote_result.txt', implode(',', $results));
       }
     }
   }

Als laatste de output genereren: quickpoll_result.php

<div class="progresswrapper">

<table>
    <tr>
	<td>Result:</td>
	<td></td>
	<td>%</td>
	<td>V</td>
    </tr>
<?php
$total = array_sum($results);
foreach (array_combine($quickpolloptions, $results) as $key => $count) {
    $percent = 100*round($count/($total),2);
    ?>
    <tr>
       <td class="quickpollheader"><?php echo $key.':'; ?></td>
       <td class="quickpollgraphic"><div class="progresspoll">
          <div class="percentpollgraph" style="width: <?php echo $percent; ?>%"></div>
       </td>
       <td class="quickpollpercent"><div class="percentpoll"><?php echo $percent; ?></div></td>
       <td class="quickpollcount"><div class="count"><?php echo $count; ?></div></td>
       
    </tr>
<?php
}
?>
</table>

Total Votes: <b><?php echo $total; ?></b>

Demo zie je hier op deze pagina rechts bovenaan in de sidebar