posix_get_last_error Retrieve the error number set by the last posix function that failed

posix_get_last_error

(PHP 4 >= 4.2.0, PHP 5)

posix_get_last_error — Retrieve the error number set by the last posix function that failed

说明

int posix_get_last_error ( void )

Retrieve the error number set by the last posix function that failed. The system error message associated with the errno may be checked with posix_strerror().

返回值

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

范例

Example #1 posix_get_last_error() example

This example attempt to kill a bogus process id, which will set the last error. We will then print out the last errno.


<?php
posix_kill(999459,SIGKILL);
echo 'Your error returned was '.posix_get_last_error(); //Your error was ___
?>

参见

posix_strerror() - Retrieve the system error message associated with the given errno

« posix_getuid
» posix_initgroups

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