octdec

(PHP 4, PHP 5)

octdecDa ottale a decimale

Descrizione

int octdec ( string $stringa_ottale )

Restituisce l'equivalente decimale del numero ottale rappresentato dall'argomento stringa_ottale. OctDec converte una stringa ottale in un numero decimale. Il più grande numero che può essere convertito è 17777777777 o 2147483647 in decimale.

Example #1 Esempio per octdec()

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

L'esempio precedente visualizzerà:

 
63 
45 

Vedere anche decoct(), bindec(), hexdec() e base_convert().

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