(PECL eio >= 0.0.1dev)
eio_link — Create a hardlink for file
$path
, string $new_path
[, int $pri = EIO_PRI_DEFAULT
[, callable $callback = NULL
[, mixed $data = NULL
]]] ) : resource
eio_link() creates a hardlink
new_path for a file specified by
path.
pathSource file path.
new_pathTarget file path.
pri��������ȼ���EIO_PRI_DEFAULT��EIO_PRI_MIN��EIO_PRI_MAX �� NULL�������
NULL��pri ����Ϊ
EIO_PRI_DEFAULT��
callback
callback
�������������ʱ�����á���Ӧƥ��һ��ԭ�ͣ�
void callback(mixed $data, int $result[, resource $req]);
data���ݸ�������û����ݡ�
result�������Ľ����ֵ��ͨ������Ӧ��ϵͳ���÷��ص�ֵ��
req��ѡ��������Դ���ɱ� eio_get_last_error() ֮��ĺ���ʹ�á�
data
Arbitrary variable passed to callback.
Example #1 eio_link() example
<?php
$filename = dirname(__FILE__)."/symlink.dat";
touch($filename);
$link = dirname(__FILE__)."/symlink.link";
$hardlink = dirname(__FILE__)."/hardlink.link";
function my_hardlink_cb($data, $result) {
global $link, $filename;
var_dump(file_exists($data) && !is_link($data));
@unlink($data);
eio_symlink($filename, $link, EIO_PRI_DEFAULT, "my_symlink_cb", $link);
}
function my_symlink_cb($data, $result) {
global $link, $filename;
var_dump(file_exists($data) && is_link($data));
if (!eio_readlink($data, EIO_PRI_DEFAULT, "my_readlink_cb", NULL)) {
@unlink($link);
@unlink($filename);
}
}
function my_readlink_cb($data, $result) {
global $filename, $link;
var_dump($result);
@unlink($link);
@unlink($filename);
}
eio_link($filename, $hardlink, EIO_PRI_DEFAULT, "my_hardlink_cb", $hardlink);
eio_event_loop();
?>
�������̵���������ڣ�
bool(true) bool(true) string(%d) "%ssymlink.dat"