PHP异步协程开发：加速图片识别与处理的效率

<?php

use SwooleCoroutine;

function downloadImage($url, $savePath)
{
    $content = file_get_contents($url);
    file_put_contents($savePath, $content);
}

function asyncDownloadImages($urls, $savePaths)
{
    $coroutines = [];

    foreach ($urls as $key => $url) {
        $coroutines[$key] = Coroutine::create('downloadImage', $url, $savePaths[$key]);
    }

    Coroutine::join($coroutines);
}

$urls = [
    'https://example.com/image1.jpg',
    'Https://example.com/image2.jpg',
    'https://example.com/image3.jpg',
];

$savePaths = [
    '/path/to/save/image1.jpg',
    '/path/to/save/image2.jpg',
    '/path/to/save/image3.jpg',
];

asyncDownloadImages($urls, $savePaths);

<?php

use SwooleCoroutine;

function recognizeImage($path)
{
    // 图像识别代码
    // ...

    return $result;
}

function asyncRecognizeImages($paths)
{
    $coroutines = [];

    foreach ($paths as $key => $path) {
        $coroutines[$key] = Coroutine::create('recognizeImage', $path);
    }

    Coroutine::join($coroutines);
}

$paths = [
    '/path/to/image1.jpg',
    '/path/to/image2.jpg',
    '/path/to/image3.jpg',
];

asyncRecognizeImages($paths);