posix_strerror

(PHP 4 >= 4.2.0, PHP 5, PHP 7)

posix_strerror — Retrieve the system error message associated with the given errno

posix_strerror ( int $errno ) : string

Returns the POSIX system error message associated with the given errno. You may get the errno parameter by calling posix_get_last_error().

errno: A POSIX error number, returned by posix_get_last_error(). If set to 0, then the string "Success" is returned.

Returns the error message, as a string.

Example #1 posix_strerror() example

This example will attempt to kill a process which does not exist, then will print out the corresponding error message.

<?php
posix_kill(50,SIGKILL);
echo posix_strerror(posix_get_last_error())."\n";
?>

The above example will output something similar to:

No such process