eio_link

(PECL eio >= 0.0.1dev)

Create a hardlink for file

resource eio_link ( string $path, string $new_path [, int $pri = EIO_PRI_DEFAULT [, callable $callback = NULL [, mixed $data = NULL ]]] )

eio_link() creates a hardlink new_path for a file specified by path.

Parameters:

path

Source file path.

new_path

Target file 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:

1	`void callback(mixed` `$data, int` `$result[, resource` `$req]);`

data

Arbitrary variable passed to callback.

Returns:

Examples:

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();
?>

The above example will output something similar to:

bool(true)
bool(true)
string(%d) "%ssymlink.dat"

Links:

http://php.net/manual/en/function.eio-link.php

doc_php

2025-01-10 15:47:30

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