(PECL eio >= 0.0.1dev)
eio_symlink — Create a symbolic link
$path
, string $new_path
, int $pri
= EIO_PRI_DEFAULT
, callable $callback
= NULL
, mixed $data
= NULL
) : resource
eio_symlink() creates a symbolic link
new_path
to path
.
path
Source path
new_path
Target path
pri
The request priority:
EIO_PRI_DEFAULT
,
EIO_PRI_MIN
,
EIO_PRI_MAX
,
or null
. If null
passed,
pri
internally
is set to
EIO_PRI_DEFAULT
.
callback
callback
function is called when the request is done. It should match the following
prototype:
void callback(mixed $data, int $result[, resource $req]);
data
is custom data passed to the request.
result
request-specific result value; basically, the value returned by corresponding system call.
req
is optional request resource which can be used with functions like eio_get_last_error()
data
Arbitrary variable passed to callback
.
eio_symlink() returns request resource on success,Im Fehlerfall wird false
zurückgegeben..
Beispiel #1 eio_symlink() example
<?php
$filename = dirname(__FILE__)."/symlink.dat";
touch($filename);
$link = dirname(__FILE__)."/symlink.link";
function my_symlink_cb($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_symlink($filename, $link, EIO_PRI_DEFAULT, "my_symlink_cb", $link);
eio_event_loop();
?>
Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:
bool(true) string(16) "/tmp/symlink.dat"