使用Guzzle检查远程文件是否存在的最佳方法是什么? [英] What is the best way to use Guzzle to check if a remote file exists?

问题描述

我想使用Guzzle检查是否存在远程文件.

这是我当前检查方式的一个示例:

/**
 * @return boolean
 */
function exists()
{
    // By default get_headers uses a GET request to fetch the headers.
    // Send a HEAD request instead
    stream_context_set_default(
        array(
            'http' => array(
                'method' => 'HEAD'
            )
        )
    );

    // Get the file headers
    $file_headers = @get_headers($this->file);

    // Check file headers for 404
    if($file_headers[0] == 'HTTP/1.1 404 Not Found')
        return false; // File not available.

    return true; // File is available!
}

但是，由于我已经在其他地方使用过Guzzle，因此我认为我可以使其更漂亮，更易读.

我是这样认为的吗?我该怎么办?

解决方案

我确实设法在文档中找到了部分答案. 枪口-请求方法

与 gist 结合使用，该功能可检查404状态.

/**
 * @return boolean
 */
function exists()
{
    $client = new GuzzleHttp\Client();

    try {
        $client->head($this->file);
        return true;
    } catch (GuzzleHttp\Exception\ClientException $e) {
        return false;
    }
}

I would like to use Guzzle to check if a remote file exists.

This is an example of how I am currently checking:

/**
 * @return boolean
 */
function exists()
{
    // By default get_headers uses a GET request to fetch the headers.
    // Send a HEAD request instead
    stream_context_set_default(
        array(
            'http' => array(
                'method' => 'HEAD'
            )
        )
    );

    // Get the file headers
    $file_headers = @get_headers($this->file);

    // Check file headers for 404
    if($file_headers[0] == 'HTTP/1.1 404 Not Found')
        return false; // File not available.

    return true; // File is available!
}

However, since I'm already using Guzzle elsewhere, I'd think I could make this prettier and more readable.

Am I right in thinking that? How would I accomplish that?

解决方案

I did manage to find part of the answer in the docs. Guzzle - Request Methods

Combined with a gist that has a similar function, that checks for 404 status.

/**
 * @return boolean
 */
function exists()
{
    $client = new GuzzleHttp\Client();

    try {
        $client->head($this->file);
        return true;
    } catch (GuzzleHttp\Exception\ClientException $e) {
        return false;
    }
}

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