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posix_get_last_error

Description

The posix_get_last_error of POSIX for PHP retrieves the error number set by the last posix function that failed.

Syntax

posix_get_last_error(): int

Return

Returns the errno (error number) set by the last posix function that failed. If no errors exist, 0 is returned.

Examples

1 · void · 0

<?

$return = posix_get_last_error();

echo $return;

?>
0

2 · void · 1

<?

$process_id = 100;
$signal = SIGKILL;

posix_kill($process_id, $signal);

$return = posix_get_last_error();

echo $return;

?>
1

3 · void · 3

<?

$process_id = 100000;
$signal = SIGKILL;

posix_kill($process_id, $signal);

$return = posix_get_last_error();

echo $return;

?>
3

4 · void · 13

<?

$filename = $_SERVER['DOCUMENT_ROOT'] . '/assets/txt/1.txt';
$flags = POSIX_X_OK;

posix_access($filename, $flags);

$return = posix_get_last_error();

echo $return;

?>
13
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