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octdec

(PHP 4, PHP 5, PHP 7, PHP 8)

octdec — Octal to decimal

Description

function octdec(string $octal_string): int|float

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

Parameters

octal_string: 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

Changelog

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.

Examples

Example #1 octdec() example

<?php
echo octdec('77') . "\n";
echo octdec(decoct(45));
?>

The above example will output:

63
45

Notes

Note:
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.

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User Contributed Notes 1 note

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contato at andersonfraga dot net ¶

17 years ago

Number is octal?

Simple and easy:

<?php

function is_octal($x) {
    return decoct(octdec($x)) == $x;
}

echo is_octal(077); // true
echo is_octal(195); // false

?>

Thanks
[]'s