邢栋博客

一、下载pthreads扩展

下载地址：http://windows.php.net/downloads/pecl/releases/pthreads

我下载的是php_pthreads-2.0.9-5.5-ts-vc11-x64.zip //5.5对应的是php版本，64位是系统位数

二、安装pthreads扩展

复制php_pthreads.dll 到目录 bin\php\ext\ 下面。（D:\wamp\bin\php\php5.5.12\ext）

复制pthreadVC2.dll 到目录 bin\php\ 下面。（D:\wamp\bin\php\php5.5.12）

复制pthreadVC2.dll 到目录 C:\windows\system32 下面。

打开php配置文件php.ini。在后面加上extension=php_pthreads.dll

提示！Windows系统需要将 pthreadVC2.dll 所在路径加入到 PATH 环境变量中。

我的电脑--->鼠标右键--->属性--->高级--->环境变量--->系统变量--->找到名称为Path的--->编辑--->在变量值最后面加上pthreadVC2.dll的完整路径（C:\WINDOWS\system32\pthreadVC2.dll）。

访问phpinfo.php 可以看到 pthreads扩展

测试pthreads扩展

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();

运行以上代码出现 Hello World，说明pthreads扩展安装成功！

例子：

header("Content-type:text/html;charset=utf-8");

class test extends \Thread {

public $url;

public $result;

public function construct($url) {

$this->url = $url;

}

public function run() {

if ($this->url) {

$this->result = model_http_curl_get($this->url);

}

}

}

function model_http_curl_get($url) {

$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, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2)');

$result = curl_exec($curl);

curl_close($curl);

return $result;

}

for ($i = 0; $i < 10; $i++) {

$urls[] = 'http://www.baidu.com/s?wd='. rand(10000, 20000);

}

/ 多线程速度测试 /

$t = microtime(true);

foreach ($urls as $key=>$url) {

$workers[$key] = new test($url);

$workers[$key]->start();

}

foreach ($workers as $key=>$worker) {

while($workers[$key]->isRunning()) {

usleep(100);

}

if ($workers[$key]->join()) {

var_dump($workers[$key]->result);

}

}

$e = microtime(true);

echo "多线程耗时：".($e-$t)."秒<br>";

/ 单线程速度测试 /

$t = microtime(true);

foreach ($urls as $key=>$url) {

var_dump(model_http_curl_get($url));

}

$e = microtime(true);

echo "For循环耗时：".($e-$t)."秒<br>";