PHP 5.3 以上版本，使用pthreads PHP扩展，可以使PHP真正地支持多线程。多线程在处理重复性的循环任务，能够大大缩短程序执行时间。
在liunx下的安装
准备工作:
1.下载Threading for PHP安装包https://github.com/krakjoe/pthreads
2.php安装包
php安装时一定要加上--enable-maintainer-zts参数 这个是安全线程
yum install php-devel php-pear httpd-devel wget http://www.php.net/distributions/php-5.5.8.tar.gz tar zxvf php-5.5.8.tar.gzcd php-5.5.8.tar.gz./configure --prefix=/usr/local/php --with-config-file-path=/etc --enable-maintainer-ztsmake && make install( make -j3 && make -j3 install) -> Faster buildingcp php.ini-development /etc/php.inipecl install pthreads提示错误error: pthreads requires ZTS, please re-compile PHP with ZTS enabled不对啊 我加了安全线程参数了 怎么还报错。。。好像刚才用yum安装php-devel的时候安装了php于是yum remove php 重新编译在安装
pecl install pthreads提示错误 ERROR: `phpize‘ failedcd /usr/local/php/bin/查看是否有phpize发现有phpize,说明不是php-devel的问题是安装扩展的方式出了问题，所以php安装是没有问题的下载pthreads扩展包unzip pthreads-master.zipcd pthreads/usr/local/php/bin/phpize./configure --with-php-config=/usr/local/php/bin/php-configmake && make install提示Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-zts-20121212/说明安装成功修改php.ini文件,添加extension=pthreads.soecho "extension=pthreads.so" >> /etc/php.iniphp -v提示Warning: PHP Startup: Unable to load dynamic library ‘/usr/lib64/php/modules/pthreads.so‘ - /usr/lib64/php/modules/pthreads.so: cannot open shared object file: No such file or directory in Unknown on line 0尼玛都没一件顺心的安装错误 我擦查看一下 /usr/local/php/include/php/main/php_config.php 里面是否有#define ZTS 1里面有这个啊 我擦 这是什么问题呢 继续百度 重新安装一次试试看 cd php-5.5.8.tar.gz ./configure --prefix=/usr/local/php --with-config-file-path=/etc --enable-maintainer-zts
make -j3 && make -j3 install
cp php.ini-development /etc/php.ini 进入pthreads解压目录cd ~/soft/pthreads-master运行phpize脚本/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config
make && make install提示安装成功echo "extension=pthreads.so" >> /etc/php.iniphp -v
PHP Warning: PHP Startup: Unable to load dynamic library ‘/usr/lib64/php/modules/pthreads.so‘ - /usr/lib64/php/modules/pthreads.so: undefined symbol: core_globals_id in Unknown on line 0
尼玛还是同样的错误 不知道了
windows下多线程的使用
windows版本的下载地址
http://windows.php.net/downloads/pecl/releases/pthreads/0.1.0/
本人php版本是5.4.17的所以下载php_pthreads-0.1.0-5.4-ts-vc9-x86.zip文件包，其中0.1.0表示为当前pthreads版本号，5.4为php版本号，ts就是之前判断php对应的ts、nts版，vs9代表是Visual Studio 2008 compiler编译器编译的，最后的x86代表的是32位的版本。
将下载好的php_pthreads-0.1.0-5.4-ts-vc9-x86.zip文件包解压找到
pthreadVC2.dll和php_pthreads.dll文件.
1、修改php.ini文件 添加extension=php_pthreads.dll
2、将php_pthreads.dll放到C:\wamp\bin\php\php5.5.12\ext下面
3、将pthreadVC2.dll放到C:\wamp\bin\php\php5.5.12下面
4、将pthreadVC2.dll放到C:\Windows\System32下面
5、将pthreadVC2.dll的绝对路径放到path环境变量里面
3、重启Apache服务器
<?php
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";
?>
多线程：5.1022920608521 For循环：20.272159099579
多线程花的时间比单线程花的时间少的多。
windows下多线程php测试成功！！！