POSIX
PHP Manual

posix_strerror

(PHP 4 >= 4.2.0, PHP 5)

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

说明

string posix_strerror ( int $errno )

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

参数

errno

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

返回值

Returns the error message, as a string.

范例

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";
?>

上例的输出类似于:

No such process

参见


POSIX
PHP Manual