decoct():octal equivalent of decimal number

$number = 64;
echo decoct($number); // 100

<?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
?>

string decoct(int $number);

Example: Convert Hexadecimal to Octal

$hex_value = 'A1';
$decimal_value = hexdec($hex_value);
echo decoct($decimal_value);  // Output: 241

Example: Handling Large Numbers

$large_number = 123456789;
echo decoct($large_number);  // Output: 726746425

Example: Convert Binary to Octal

$binary_value = '1101'; 
$decimal_value = bindec($binary_value);
echo decoct($decimal_value);  // Output: 15

Negative integers and octal output

For negative integers, decoct() reflects the platform's two's-complement integer width. Avoid documenting one fixed octal result for every server.

$negative_value = -100;
$octal = decoct($negative_value);
echo $octal; // Platform-dependent representation

Example: Working with Octal and Strings

$number = '123';
$decimal_value = (int)$number;
echo decoct($decimal_value);  // Output: 173 (string treated as integer)

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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