in.php

<?php

function fib($n) {
    if($n <= 2) {
        return 1;
    } else {
        return fib($n - 1) + fib($n - 2);
    }
}

echo fib(30) . "\n";

out.php

<?php if(!isset($_)) $_ = array();
function fib($n) {
$_ = array();
array_push($_, $n);
array_push($_, 2);
$__Y2ZjZDI = array_pop($_);
array_push($_, array_pop($_) <= $__Y2ZjZDI);
if(array_pop($_)) {
array_push($_, 1);
return array_pop($_);
} else {
array_push($_, 'fib');
$__YzRjYTQ = array_pop($_);
array_push($_, $n);
array_push($_, 1);
$__YzgxZTc = array_pop($_);
array_push($_, array_pop($_) - $__YzgxZTc);
$__ZWNjYmM = array_pop($_);
array_push($_, $__YzRjYTQ($__ZWNjYmM));
array_push($_, 'fib');
$__YTg3ZmY = array_pop($_);
array_push($_, $n);
array_push($_, 2);
$__ZTRkYTN = array_pop($_);
array_push($_, array_pop($_) - $__ZTRkYTN);
$__MTY3OTA = array_pop($_);
array_push($_, $__YTg3ZmY($__MTY3OTA));
$__OGYxNGU = array_pop($_);
array_push($_, array_pop($_) + $__OGYxNGU);
return array_pop($_);
}
}
array_push($_, 'fib');
$__YzlmMGY = array_pop($_);
array_push($_, 30);
$__NDVjNDh = array_pop($_);
array_push($_, $__YzlmMGY($__NDVjNDh));
array_push($_,'
');
$__ZDNkOTQ = array_pop($_);
array_push($_, array_pop($_) . $__ZDNkOTQ);
echo array_pop($_);