POSIX_ACCESS(3) 							 1							   POSIX_ACCESS(3)

posix_access - Determine accessibility of a file

SYNOPSIS

       bool posix_access (string  $file, [int  $mode = POSIX_F_OK])

DESCRIPTION

       posix_access(3) checks the user's permission of a file.

PARAMETERS

	      o $file
		- The name of the file to be tested.

	      o $mode
		-  A  mask  consisting of one or more of POSIX_F_OK, POSIX_R_OK, POSIX_W_OK and POSIX_X_OK.  POSIX_R_OK, POSIX_W_OK and POSIX_X_OK
		request checking whether the file exists and has read, write and execute  permissions,	respectively.	POSIX_F_OK  just  requests
		checking for the existence of the file.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      posix_access(3) example

	       This example will check if the $file is readable and writable, otherwise will print an error message.

	      <?php

	      $file = 'some_file';

	      if (posix_access($file, POSIX_R_OK | POSIX_W_OK)) {
		  echo 'The file is readable and writable!';

	      } else {
		  $error = posix_get_last_error();

		  echo "Error $error: " . posix_strerror($error);
	      }

	      ?>

NOTES

       Note

	      When  safe  mode is enabled, PHP checks whether the files or directories being operated upon have the same UID (owner) as the script
	      that is being executed.

SEE ALSO

       posix_get_last_error(3), posix_strerror(3).

PHP Documentation Group 													   POSIX_ACCESS(3)