PHP安装pthreads多线程扩展

<?php
class AsyncOperation extends Thread
{
    public function __construct($arg)
    {
        $this->arg = $arg;
    }
    public function run()
    {
        if ($this->arg) {
            printf("Hello %s\n", $this->arg);
        }
    }
}
$thread = new AsyncOperation("World");
if ($thread->start()) {
    $thread->join();
}
?>
输出 Hello Word

<?php
header("content-Type: text/html; charset=utf-8");
class test_thread_run extends Thread
{
    public $url;
    public $data;

    public function __construct($url)
    {
        $this->url = $url;
    }

    public function run()
    {
        if (($url = $this->url)) {
            $this->data = model_http_curl_get($url);
        }
    }
}

function model_thread_result_get($urls_array)
{
    foreach ($urls_array as $key => $value) {
        $thread_array[$key] = new test_thread_run($value["url"]);
        $thread_array[$key]->start();
    }

    foreach ($thread_array as $thread_array_key => $thread_array_value) {
        while ($thread_array[$thread_array_key]->isRunning()) {
            usleep(10);
        }
        if ($thread_array[$thread_array_key]->join()) {
            $variable_data[$thread_array_key] = $thread_array[$thread_array_key]->data;
        }
    }
    return $variable_data;
}

function model_http_curl_get($url, $userAgent = "")
{
    $userAgent = $userAgent ? $userAgent : 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2)';
    $curl      = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_TIMEOUT, 5);
    curl_setopt($curl, CURLOPT_USERAGENT, $userAgent);
    $result = curl_exec($curl);
    curl_close($curl);
    return $result;
}

for ($i = 0; $i < 10; $i++) {
    $urls_array[] = array("name" => "baidu", "url" => "http://www.baidu.com/s?wd=" . mt_rand(10000, 20000));
}

$t      = microtime(true);
$result = model_thread_result_get($urls_array);
$e      = microtime(true);
echo "多线程：" . ($e - $t) . "\n";

$t = microtime(true);
foreach ($urls_array as $key => $value) {
    $result_new[$key] = model_http_curl_get($value["url"]);
}
$e = microtime(true);
echo "For循环：" . ($e - $t) . "\n";