PHP 4, PHP 5, PHP 7, PHP 8
octdec - Octal to decimal

octdec( string$octal_string ): int|float

Returns the decimal equivalent of the octal number represented by the octal_string argument.



The octal string to convert. Any invalid characters in octal_string are silently ignored. As of PHP 7.4.0 supplying any invalid characters is deprecated.

Return Values

The decimal representation of octal_string



The function can convert numbers that are too large to fit into the platforms int type, larger values are returned as float in that case.


Version Description
7.4.0 Passing invalid characters will now generate a deprecation notice. The result will still be computed as if the invalid characters did not exist.

Related Functions

Example of octdec

Show all examples for octdec

PHP Version:

Function octdec:

Mathematical Functions Functions

Most used PHP functions