xattr_set(3) [php man page]

XATTR_SET(3)								 1							      XATTR_SET(3)

xattr_set - Set an extended attribute

SYNOPSIS

       bool xattr_set (string  $filename, string  $name, string  $value, [int  $flags])

DESCRIPTION

	This function sets the value of an extended attribute of a file.

       Extended attributes have two different namespaces: user and root. The user namespace is available to all users, while the root namespace is
       available only to users with root privileges. xattr operates on the user namespace by default, but this can  be	changed  with  the  $flags
       parameter.

PARAMETERS

	      o $filename
		- The file in which we set the attribute.

	      o $name
		-  The	name  of  the extended attribute. This attribute will be created if it doesn't exist or replaced otherwise. You can change
		this behaviour by using the $flags parameter.

	      o $value
		- The value of the attribute.

	      o $flags
		-

	      Supported xattr flags

	      +-----------------+---------------------------------------------------+
	      | 		|						    |
	      |  XATTR_CREATE	|						    |
	      | 		|						    |
	      | 		| Function will fail if extended attribute  already |
	      | 		| exists.					    |
	      | 		|						    |
	      | 		|						    |
	      | XATTR_REPLACE	|						    |
	      | 		|						    |
	      | 		| Function  will fail if extended attribute doesn't |
	      | 		| exist.					    |
	      | 		|						    |
	      | 		|						    |
	      |XATTR_DONTFOLLOW |						    |
	      | 		|						    |
	      | 		| Do not follow the symbolic link  but	operate  on |
	      | 		| symbolic link itself. 			    |
	      | 		|						    |
	      | 		|						    |
	      |   XATTR_ROOT	|						    |
	      | 		|						    |
	      | 		| Set	attribute   in	root  (trusted)  namespace. |
	      | 		| Requires root privileges.			    |
	      | 		|						    |
	      +-----------------+---------------------------------------------------+
RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Sets extended attributes on .wav file

	      <?php
	      $file = 'my_favourite_song.wav';
	      xattr_set($file, 'Artist', 'Someone');
	      xattr_set($file, 'My ranking', 'Good');
	      xattr_set($file, 'Listen count', '34');

	      /* ... other code ... */

	      printf("You've played this song %d times", xattr_get($file, 'Listen count'));
	      ?>

SEE ALSO

       xattr_get(3), xattr_remove(3).

PHP Documentation Group 													      XATTR_SET(3)

Check Out this Related Man Page

XATTR_LIST(3)								 1							     XATTR_LIST(3)

xattr_list - Get a list of extended attributes

SYNOPSIS

       array xattr_list (string  $filename, [int  $flags])

DESCRIPTION

	This functions gets a list of names of extended attributes of a file.

       Extended attributes have two different namespaces: user and root. The user namespace is available to all users, while the root namespace is
       available only to users with root privileges. xattr operates on the user namespace by default, but this can  be	changed  with  the  $flags
       parameter.

PARAMETERS

	      o $filename
		- The path of the file.

	      o $flags
		-

	      Supported xattr flags

	      +-----------------+---------------------------------------------------+
	      | 		|						    |
	      |XATTR_DONTFOLLOW |						    |
	      | 		|						    |
	      | 		| Do  not  follow  the symbolic link but operate on |
	      | 		| symbolic link itself. 			    |
	      | 		|						    |
	      | 		|						    |
	      |   XATTR_ROOT	|						    |
	      | 		|						    |
	      | 		| Set  attribute  in  root   (trusted)	 namespace. |
	      | 		| Requires root privileges.			    |
	      | 		|						    |
	      +-----------------+---------------------------------------------------+
RETURN VALUES

	This function returns an array with names of extended attributes.

EXAMPLES

       Example #1

	      Prints names of all extended attributes of file

	      <?php
	      $file = 'some_file';
	      $root_attributes = xattr_list($file, XATTR_ROOT);
	      $user_attributes = xattr_list($file);

	      echo "Root attributes: 
";
	      foreach ($root_attributes as $attr_name) {
		  printf("%s
", $attr_name);
	      }

	      echo "
 User attributes: 
";
	      foreach ($attributes as $attr_name) {
		  printf("%s
", $attr_name);
	      }

	      ?>

SEE ALSO

       xattr_get(3).

PHP Documentation Group 													     XATTR_LIST(3)

Linux and UNIX Man Pages

xattr_set(3) [php man page]

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