Saturday, January 9, 2016

Radix Sort in PHP

A simple program that I wrote in PHP to sort a series of numbers Radix Sort algorithm.

 If you have some questions please send me an email at jakerpomperada@gmail.comand jakerpomperada@yahoo.com.  

My mobile number here in the Philippines is 09173084360.



Sample Program Output


Program Listing

<?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>Radix Sort 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>Radix Sort 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 RadixSort(&$data, $count) {
for ($shift = 31; $shift > -1; $shift--)
{
$j = 0;

for ($i = 0; $i < $count; $i++)
{
$move = ($data[$i] << $shift) >= 0;

if ($shift == 0 ? !$move : $move)
$data[$i - $j] = $data[$i];
else
$temp[$j++] = $data[$i];
}

for ($i = 0; $i < $j; $i++)
{
$data[($count - $j) + $i] = $temp[$i];
}
}

$temp = null;
}

if(isset($_POST['bubble']))

  $arr = array($a,$b,$c,$d,$e);
  $orig = implode(",", $arr); 
 $result = RadixSort($arr,5);
 $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>



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