Decimal to Octal Converter in PHP
Converting a decimal number to an octal number is a common task in programming.
Below are the approaches to convert a number from decimal to octal in PHP:
Table of Content
- Using PHP’s Built-in Functions
- Using Manual Conversion
Using PHP’s Built-in Functions
In this approach, we are using PHP’s built-in function decoct() to directly convert a decimal number to its octal representation. The decoct() function takes a decimal number as input and returns its octal equivalent.
Example: This example shows the conversion of Decimal to octal using built-in functions.
<?php
$decimalNumber = 35;
$octalNumber = decoct($decimalNumber);
echo "Decimal Number: $decimalNumber\n";
echo "Octal Number: $octalNumber\n";
?>
Output
Decimal Number: 35
Octal Number: 43
Using Manual Conversion
In this approach, we are using manual conversion to convert a decimal number to octal in PHP. The function decimalToOctal takes the decimal number as input and iteratively calculates the remainder of division by 8, storing each remainder in a stack. It then retrieves the remainders from the stack in reverse order to build the octal number, providing the conversion result.
Example: This example shows the conversion of Decimal to octal using custom functions.
<?php
$decimal_number = 35;
function decimalToOctal($decimal_number)
{
$octal_number = '';
$remainder_stack = [];
while ($decimal_number > 0) {
$remainder = $decimal_number % 8;
array_push($remainder_stack, $remainder);
$decimal_number = intval($decimal_number / 8);
}
while (!empty($remainder_stack)) {
$octal_number .= array_pop($remainder_stack);
}
return $octal_number;
}
$octal_number = decimalToOctal($decimal_number);
echo "Decimal Number: $decimal_number\n";
echo "Octal Number: $octal_number\n";
?>
Output
Decimal Number: 35
Octal Number: 43