on_stats

摘要

on_stats 允许你获取请求传输数据统计以及处理器在底层传输的详情. on_stats 是个回调，当处理器完成传输一个请求的时候被调用。 该回调被调用请求传输数据统计、接收到响应，或遇到错误，包含发送请求数据时间的总量。

类型

• callable

常量

GuzzleHttp\RequestOptions::ON_STATS

该回调接收 GuzzleHttp\TransferStats 对象。

use GuzzleHttp\TransferStats;
$client = new GuzzleHttp\Client();
$client->request('GET', 'http://httpbin.org/stream/1024', [
    'on_stats' => function (TransferStats $stats) {
        echo $stats->getEffectiveUri() . "\n";
        echo $stats->getTransferTime() . "\n";
        var_dump($stats->getHandlerStats());
        // You must check if a response was received before using the
        // response object.
        if ($stats->hasResponse()) {
            echo $stats->getResponse()->getStatusCode();
        } else {
            // Error data is handler specific. You will need to know what
            // type of error data your handler uses before using this
            // value.
            var_dump($stats->getHandlerErrorData());
        }
    }
]);