eio_rename

(PECL eio >= 0.0.1dev)

eio_rename — Change the name or location of a file

说明

eio_rename(
    string $path,
    string $new_path,
    int $pri = EIO_PRI_DEFAULT,
    callable $callback = NULL,
    mixed $data = NULL
): resource

eio_rename() renames or moves a file to new location.

参数

path

Source path

new_path

Target path

pri

请求的优先级：EIO_PRI_DEFAULT，EIO_PRI_MIN，EIO_PRI_MAX 或 null。如果是 null，pri 将设为 EIO_PRI_DEFAULT。

callback

callback 函数在请求完成时被调用。其应匹配一下原型：

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

data: 传递给请求的用户数据。
result: 针对请求的结果的值。通常是相应的系统调用返回的值。
req: 可选的请求资源，可被 eio_get_last_error() 之类的函数使用。

data

Arbitrary variable passed to callback.

返回值

eio_rename() returns request resource on success, 或者在失败时返回 false.

示例

示例 #1 eio_rename() example

<?php
$filename = dirname(__FILE__)."/eio-temp-file.dat";
touch($filename);
$new_filename = dirname(__FILE__)."/eio-temp-file-new.dat";

function my_rename_cb($data, $result) {
    global $filename, $new_filename;

    if ($result == 0 && !file_exists($filename) && file_exists($new_filename)) {
        @unlink($new_filename);
        echo "eio_rename_ok";
    } else {
        @unlink($filename);
    }
}

eio_rename($filename, $new_filename, EIO_PRI_DEFAULT, "my_rename_cb", $filename);
eio_event_loop();
?>

以上示例的输出类似于：

eio_rename_ok

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