# posix_strerror

(PHP 4 >= 4.2.0, PHP 5)

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

### Description

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().

### Parameters

`errno`

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

### Return Values

Returns the error message, as a string.

### Examples

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

### See Also

- posix_get_last_error()