<?php

define('FOO', 10);
$array = array(10 => FOO, "FOO" => 20);
print $array[$array[FOO]] * $array["FOO"];

?>

<?php

$a = 1;
$b = 2.5;
$c = 0xFF;

$d = $b + $c;
$e = $d * $b;
$f = ($d + $e) % $a;

print ($f + $e);

?>

<?php

$a = null;
$b = null;
$c = null;
$d = null;

if($a && !$b) {
  if(!!$c && !$d) {
    if($d && ($a || $c)) {
      if(!$d && $b) {
        $number = 1;
      } else {
        $number = 2;
      }
    } else {
      $number = 3;
    }
  } else {
    $number = 4;
  }
} else {
  $number = 5;
}
?>

<?php

$string = "111221";

for($i = 0; $i < strlen($string); $i++) {
	
	$current = $string[$i];
	$count = 1;
	
	while(isset($string[$i + $count]) && ($string[$i + $count] == $current)) $count++;
	
	$newstring .= "$count{$current}";
	
	$i += $count-1;
}

print $newstring;
?>

<?php
function magic($p, $q) {
  return ($q == 0) ? $p : magic($q, $p % $q);
}
?>

<?php

$a = 1;
$b = 0;

??????

$c = $a / $b;
?>