The Riddle

class converter{
var $input = ”;
function getinput($str){
$this->input = $str;
}

function getArray($param){
return split($param,$this->input);
}

function ascii(){
$n_arr = $this->getArray(" ");

for($i=0;$i<count($n_arr);$i++){
$bin = trim($n_arr[$i]);
$j = 0;
$nil_des = 0;
for ($I=(strlen($bin)-1);$I>=0;$I–){
$nil_pow = pow(2,$j);
$des =   $nil_pow * $bin[$I];
$nil_des = $nil_des + $des;
$j++;
}
$charakter .= chr($nil_des);
}
$this->sayit("ASCII = $charakter <br/>");
}

function biner(){
for ($I=0;$I<=(strlen(trim($this->input)));$I++){
$ord_bin = ord($this->input[$I]);
$ord_master = $ord_bin;

$ord_biner = ”;
$B = 0;
while ($ord_bin != 0){
$ord_bin = $ord_bin / 2;
if ($ord_bin == 0.5) {
$ord_biner = $ord_biner . " 0";
$ord_bin = 0;
}else{
$ord_bin = round($ord_bin);
$ord_biner = $ord_biner . " ".$ord_bin;
}
$B++;
}
$B = $B – 1;
$e = 0;
$bbb = ”;
$eplus = 0;
for ($BI=$B;$BI>=0;$BI–){
$e = pow(2,$BI);
$eplus = $eplus + $e;
if ($eplus > $ord_master){
$bbb .= 0;
$e += 0;
$eplus = $eplus – $e;
}else{
$bbb .= 1;
$e += $e;
}
}
$output = $output." ".$bbb;
}

$this->sayit("Biner: $output");
}
function sayit($str){
echo $str;
}
}

?>
<title>CHAR CONVERTER</title>
<br/>
<form action="<?=$_SERVER[PHP_SELF];?>" method=POST>
<table width=100%>
<tr valign=top>
<td width=5%> Input : </td>
<td> <input type=text name=inputan size=100 value="<?=$_POST[inputan];?>"> </td>
</tr>
<tr valign=top>
<td> Pilihan : </td>
<td>
<input type=radio name=pilihan value="ascii" <?php if ($_POST[pilihan] == ‘ascii’){ echo "checked"; }else{ echo ""; } ?> >ASCII <br/>
<input type=radio name=pilihan value="biner" <?php if ($_POST[pilihan] == ‘biner’){ echo "checked"; }else{ echo ""; } ?> >Biner <br/>
</td>
</tr>
</table>
<input type=submit name=proses value=proses>

<hr/>

<?php
if (!isset($_POST[proses])){
exit();
}

$conv = new converter;

$conv->getinput($_POST[inputan]);

if ($_POST[pilihan] == ‘biner’){
$conv->biner();
}else if ($_POST[pilihan] == ‘ascii’){
$conv->ascii();
}
else{
$conv->sayit("Silahkan pilih dulu pilihan yang ada.");
}

?>