以并行方式获取Google API PHP库的文件。

要以并行方式获取Google API PHP库的文件，可以使用多线程或多进程的方式来实现。以下是使用多线程和多进程的代码示例：

使用多线程：

<?php
$urls = [
    'https://github.com/google/google-api-php-client/archive/refs/heads/master.zip',
    'https://github.com/google/google-auth-library-php/archive/refs/heads/master.zip',
    // 添加其他需要获取的文件URL
];

$threads = [];
foreach ($urls as $url) {
    $thread = new Thread('downloadFile', $url);
    $thread->start();
    $threads[] = $thread;
}

foreach ($threads as $thread) {
    $thread->join();
}

function downloadFile($url)
{
    $filename = basename($url);
    $file = file_get_contents($url);
    file_put_contents($filename, $file);
    echo "$filename downloaded." . PHP_EOL;
}
?>

使用多进程：

<?php
$urls = [
    'https://github.com/google/google-api-php-client/archive/refs/heads/master.zip',
    'https://github.com/google/google-auth-library-php/archive/refs/heads/master.zip',
    // 添加其他需要获取的文件URL
];

$processes = [];
foreach ($urls as $url) {
    $process = new Process('downloadFile', $url);
    $process->start();
    $processes[] = $process;
}

foreach ($processes as $process) {
    $process->wait();
}

function downloadFile($url)
{
    $filename = basename($url);
    $file = file_get_contents($url);
    file_put_contents($filename, $file);
    echo "$filename downloaded." . PHP_EOL;
}
?>

请注意，以上示例中使用了第三方的多线程和多进程库，如Thread类和Process类。你需要根据你选择的库的要求进行安装和配置。在实际应用中，你可能还需要处理可能出现的错误和异常。