php man page for posix_strerror

POSIX_STRERROR(3)							 1							 POSIX_STRERROR(3)

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

SYNOPSIS
       string posix_strerror (int  $errno)

DESCRIPTION
	Returns   the	POSIX	system	 error	message  associated  with  the	given  $errno.	You  may  get  the  $errno  parameter  by  calling
       posix_get_last_error(3).

PARAMETERS
	      o $errno
		- A POSIX error number, returned by posix_get_last_error(3). If set to 0, then the string "Success" is returned.

RETURN VALUES
	Returns the error message, as a string.

EXAMPLES
       Example #1

	      posix_strerror(3) 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())."
";
	      ?>

	      The above example will output something similar to:

	      No such process

SEE ALSO
       posix_get_last_error(3).

PHP Documentation Group 													 POSIX_STRERROR(3)