decoct():octal equivalent of decimal number

string decoct(int $number);

Example : Decimal to octal

<?Php
echo decoct(5); // Output 5 
echo "<br>";
echo decoct(55); // Output 67 
echo "<br>";
echo decoct(500); // Output is 764
echo "<br>";
echo decoct(658); // Output is 1222
echo "<br>";
echo decoct(3000); // Output is 5670
?>