(PHP 4 >= 4.2.0, PHP 5, PHP 7)
posix_strerror — Retrieve the system error message associated with the given errno
$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().
errnoA 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";
?>
以上例程的输出类似于：
No such process