decoct

<?

$number = 0;

$return = decoct($number);

echo $return;

?>

0

<?

$number = 1;

$return = decoct($number);

echo $return;

?>

1

<?

$number = 2;

$return = decoct($number);

echo $return;

?>

2

<?

$number = 9223372036854775806;

$return = decoct($number);

echo $return;

?>

777777777777777777776

<?

$number = 9223372036854775807;

$return = decoct($number);

echo $return;

?>

777777777777777777777

<?

$number1 = -9223372036854775808;
$number2 = 9223372036854775808;

$return1 = decoct($number1);
$return2 = decoct($number2);

echo $return1 . PHP_EOL;
echo $return2;

?>

<?

$number1 = -2;
$number2 = 18446744073709551614;

$return1 = decoct($number1);
$return2 = decoct($number2);

echo $return1 . PHP_EOL;
echo $return2;

?>

<?

$number1 = -1;
$number2 = 18446744073709551615;

$return1 = decoct($number1);
$return2 = decoct($number2);

echo $return1 . PHP_EOL;
echo $return2;

?>