php man page for xattr_supported

XATTR_SUPPORTED(3)							 1							XATTR_SUPPORTED(3)

xattr_supported - Check if filesystem supports extended attributes

SYNOPSIS
       bool xattr_supported (string  $filename, [int  $flags])

DESCRIPTION
	This functions checks if the filesystem holding the given file supports extended attributes. Read access to the file is required.

PARAMETERS
	      o $filename
		- The path of the tested file.

	      o $flags
		-

	      Supported xattr flags

	      +-----------------+---------------------------------------------------+
	      | 		|						    |
	      |XATTR_DONTFOLLOW |						    |
	      | 		|						    |
	      | 		| Do  not  follow  the symbolic link but operate on |
	      | 		| symbolic link itself. 			    |
	      | 		|						    |
	      +-----------------+---------------------------------------------------+
RETURN VALUES
	This function returns TRUE if filesystem supports extended attributes, FALSE if it doesn't and NULL if it can't be determined (for example
       wrong path or lack of permissions to file).

EXAMPLES
       Example #1

	      xattr_supported(3) example

	       The following code checks if we can use extended attributes.

	      <?php
	      $file = 'some_file';

	      if (xattr_supported($file)) {
		  /* ... make use of some xattr_* functions ... */
	      }

	      ?>

SEE ALSO
       xattr_get(3), xattr_list(3).

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