PHP octdec Function: Converting Octal Strings to Decimal Numbers

The octdec function in PHP converts a string representing an octal number into its decimal equivalent.

Syntax :

number octdec(string $octal_string)

Parameter :

$octal_string – The octal number expressed as a string that you want to convert.

Return value :

The function returns the decimal representation of the provided octal string.

Example :

<?php
echo octdec('77') . "\n"; // converts octal 77 to decimal
echo octdec(decoct(45));   // converts decimal 45 to octal then back to decimal
?>

Output :

63
45