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posix_geteuid

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

posix_geteuidReturn the effective user ID of the current process

Descrição

posix_geteuid(): int

Return the numeric effective user ID of the current process. See also posix_getpwuid() for information on how to convert this into a useable username.

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

Returns the user id, as an int

Exemplos

Exemplo #1 posix_geteuid() example

This example will show the current user id then set the effective user id to a separate id using posix_seteuid(), then show the difference between the real id and the effective id.

<?php
echo posix_getuid()."\n"//10001
echo posix_geteuid()."\n"//10001
posix_seteuid(10000);
echo 
posix_getuid()."\n"//10001
echo posix_geteuid()."\n"//10000
?>

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divinity76+spam at gmail dot com
4 months ago
if you for some reason need the euid without depending on php-posix being available, try

<?php
function geteuid_without_posix_dependency(): int
{
    try {
       
// this is faster if available
       
return \posix_geteuid();
    } catch (\
Throwable $ex) {
       
// php-posix not available.. fallback to hack
       
$t = tmpfile();
       
$ret = fstat($t)["uid"];
       
fclose($t);
        return
$ret;
    }
}
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