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@cahsowan
Last active November 1, 2016 00:54
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Simple example of polling using PHP
<?php
$pertanyaan = "Sistem operasi HP terbaik adalah?";
$pilihan = [
'android' => 'Android',
'ios' => 'iOS',
'wp' => 'Windows Phone'
];
function getData(){
$empty_counter = [
'android' => 0,
'ios' => 0,
'wp' => 0
];
$result = json_decode(file_get_contents('data.txt'), true);
return is_null($result) ? $empty_counter : $result;
}
function writeData($data){
file_put_contents('data.txt', json_encode($data));
}
if ($_POST['pilihanmu']) {
$data = getData();
$data[$_POST['pilihanmu']] +=1;
writeData($data);
$total = array_sum($data);
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Jajak Pendapat (POLLING)</title>
<style type="text/css">
li { list-style: none; }
</style>
</head>
<body>
<h1>Jajak Pendapat</h1>
<hr>
<form method="POST" action="<?php echo $PHP_SELF ?>">
<p><?php echo $pertanyaan ?></p>
<ul>
<?php foreach ($pilihan as $key => $os): ?>
<li>
<input type="radio" name="pilihanmu" value="<?php echo $key ?>"> <?php echo $os ?>
</li>
<?php endforeach ?>
</ul>
<button type="submit">Vote</button>
</form>
<?php if ($_POST['pilihanmu']): ?>
<hr>
<table border="1">
<?php foreach ($data as $key => $value): ?>
<tr>
<td><?php echo $pilihan[$key] ?></td>
<td style="width:200px">
<div style="background:red; height:10px; width: <?php echo $value / $total * 100 ?>%"></div>
</td>
<td><?php echo $value ?></td>
</tr>
<?php endforeach ?>
</table>
<?php endif ?>
</body>
</html>
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