(PECL xattr >= 0.9.0)
xattr_set — Set an extended attribute
$filename
, string $name
, string $value
[, int $flags
= 0
] ) : boolThis function sets the value of an extended attribute of a file.
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xattr 默锟斤拷锟斤拷 user 锟斤拷锟斤拷锟秸硷拷锟较诧拷锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷
flags
锟斤拷锟斤拷锟斤拷锟叫革拷锟侥★拷
filename
The file in which we set the attribute.
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.
value
The value of the attribute.
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. |
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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'));
?>