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Bucket Sort in PHP

Bucket Sort in PHP

A sample program that I wrote to sort a series of numbers using PHP using bucket sortalgorithm.

<?php
error_reporting(0);
$a= $_POST['val_1'];
$b= $_POST['val_2'];
$c= $_POST['val_3'];
$d= $_POST['val_4'];
$e= $_POST['val_5']; 
 if(isset($_POST['clear']))
{ 
$a=""; $b=""; $c=""; $d=""; $e="";
$display_original=""; $process_results="";
}
?>
<html>
<head>
<title>Bucket in PHP</title>
<style>
body { font-family:arial;}
form { width: 400px; }
label { float: left; width: 95px; }
.clear { clear: both; height: 0; line-height: 0; }
.floatright { float: right; }
</style>
</head>
<body>
<h2>Bucket in PHP</h2>
<form action="" method="post">
<label>Value No. 1 : </label> <input type="text" name="val_1" value="<?php echo $a; ?>" size="5" maxlength="5" autofocus/><br/><br>
<label>Value No. 2 : </label> <input type="text" name="val_2" value="<?php echo $b; ?>" size="5" maxlength="5"/><br/><br>
<label>Value No. 3 : </label> <input type="text" name="val_3" value="<?php echo $c; ?>" size="5" maxlength="5"/><br/><br>
<label>Value No. 4 : </label> <input type="text" name="val_4" value="<?php echo $d; ?>"size="5" maxlength="5"/><br/><br>
<label>Value No. 5 : </label> <input type="text" name="val_5" value="<?php echo $e; ?>"size="5" maxlength="5"/><br/>
<br />
<input type="submit" value="Sort" name="bubble"/>
<input type="submit" value="Clear" name="clear" />
</form>
<?php
function BucketSort(&$data)
{
 $minValue = $data[0];
 $maxValue = $data[0];
 $dataLength = count($data);
 for ($i = 1; $i < $dataLength; $i++)
 {
 if ($data[$i] > $maxValue)
 $maxValue = $data[$i];
 if ($data[$i] < $minValue)
 $minValue = $data[$i];
 }
 $bucket = array();
 $bucketLength = $maxValue - $minValue + 1;
 
 for ($i = 0; $i < $bucketLength; $i++)
 {
 $bucket[$i] = array();
 }
 for ($i = 0; $i < $dataLength; $i++)
 {
 array_push($bucket[$data[$i] - $minValue], $data[$i]);
 }
 
 $k = 0;
 for ($i = 0; $i < $bucketLength; $i++)
 {
 $bucketCount = count($bucket[$i]);
 
 if ($bucketCount > 0)
 {
 for ($j = 0; $j < $bucketCount; $j++)
 {
 $data[$k] = $bucket[$i][$j];
 $k++;
 }
 }
 }
}
if(isset($_POST['bubble']))
{ 
 
 $arr = array($a,$b,$c,$d,$e);
 $orig = implode(",", $arr); 
 
 BucketSort($arr);
 $final_sort = implode(",", $arr);
 $display_original = "Original Values : " .$orig."<br><br>";
 $process_results = "Sorted Values : " .$final_sort."<br>";
 
 echo $display_original;
 echo $process_results;
}
?>
</body>
</html>