PHP 5.4.31 Released

octdec

(PHP 4, PHP 5)

octdecOctal para decimal

Descrição

number octdec ( string $octal_string )

Retorna o decimal equivalente do número octal representado pelo argumento octal_string.

Parâmetros

octal_string

A string octal a ser convertida

Valor Retornado

A representação decimal de octal_string

Changelog

Versão Descrição
Since 4.1.0 A função pode agora converter números que são maiores que o tipo integer da plataforma, valores maiores são retornados como float neste caso.

Exemplos

Exemplo #1 Exemplo da octdec()

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

O exemplo acima irá imprimir:

63
45

Veja Também

add a note add a note

User Contributed Notes 3 notes

up
0
contato at andersonfraga dot net
5 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
up
0
harry at disgruntledgoat dot com
7 years ago
Calling the sticky bit "text" is not erroneous: On UNIX back in 1974, it instructed the operating system to retain the text segment of the program in swap space after the process exited. This speeded subsequent executions by allowing the kernel to make a single operation of moving the program from swap to real memory.
up
0
Anonymous
11 years ago
The 'S' flag for Unix file access rights is badly computed in the above sample.
If the corresponding 'x' bit (exec) is not set, and the 's' bit (setgid/setuid/sticky) is set, then the flag should not be displayed as and uppercase 'S', but as a lower case 's'. Also the sticky bit (mainly used for folders with public right access rights such as /tmp to protect against deletion by non owner) is badly named ("text"?).
To Top