PHP 线程安全，多线程

3.添加扩展 php.ini添加 : extension=pthreads.so; 如果你是之前安装过php，那么， /usr/local/php-zts/bin/php -i|grep php.ini 这个语句帮你找到php.ini位置。 找出php.ini的位置，修改它把ext=pthreads.so加入进入进去，因为我原来就有php，现在新装的php

3.添加扩展

php.ini添加 :  extension=pthreads.so;

如果你是之前安装过php，那么，/usr/local/php-zts/bin/php -i|grep "php.ini" 这个语句帮你找到php.ini位置。

找出php.ini的位置，修改它把ext=pthreads.so加入进入进去，因为我原来就有php，现在新装的php.ini文件不存在我就考了一个过去……

4.查看扩展是否安装成功

/usr/local/php5.5.12-zts/bin/php -i | grep -i pthreads

测试代码：

<?php

/*

* Sharing symbols 101

* @NOTE Thread::fetch was never included in a release and was superceeded by object handlers

*   pthreads allows read access to thread data from any context

    pthreads allows write access to thread data from any context

    carry on reading ...

    work in progress ...

*/ 

classTestObject { 

    public$val; 

} 

   

classFetching extendsThread { 

    publicfunction run(){ 

        /*

        * of course ...

        */ 

        $this->sym = 10245; 

        $this->arr = array( 

            "1","2","3" 

        ); 

        echo'6'.chr(10); 

        /*

        * objects do work, no preparation needed ...

        * read/write objects isn't finalized ..

        * so do the dance to make it work ...

        */ 

        $obj= newTestObject(); 

        $obj->val = "testval"; 

        $this->obj = $obj; 

        echo'7'.chr(10); 

        /*

        * will always work

        */ 

        $this->objs = serialize($this->obj); 

        echo'8'.chr(10); 

        /*

        * nooooooo

        */ 

        $this->res = fopen("php://stdout","w"); 

        echo'9'.chr(10); 

        /*

        * tell the waiting process we have created symbols and fetch will succeed

        */ 

        $this->synchronized(function(){ 

            $this->notify(); 

        }); 

        echo'10'.chr(10); 

        /* wait for the process to be finished with the stream */ 

        $this->synchronized(function(){ 

            $this->wait(); 

        }); 

        echo'11'.chr(10); 

    } 

} 

echo'0'.chr(10); 

$thread= newFetching(); 

echo'1'.chr(10); 

$thread->start(); 

//sleep(1); 加了这个就不能正常工作，真奇怪 

echo'2'.chr(10); 

$thread->synchronized(function($me){ 

    echo'3'.chr(10); 

    $me->wait(); 

    echo'4'.chr(10); 

},$thread); 

echo'5'.chr(10); 

   

/*

* we just got notified that there are symbols waiting

*/ 

foreach(array("sym","arr","obj","objs","res")as$symbol){ 

    printf("\$thread->%s: ",$symbol);    

    $fetched= $thread->$symbol; 

    if($fetched) { 

        switch($symbol){ 

            /*

            * manual unserialize

            */ 

            case"objs": 

                var_dump(unserialize($fetched)); 

            break; 

               

            default: var_dump($fetched); 

        } 

    } 

    printf("\n"); 

} 

   

/* notify the thread so it can destroy resource */ 

$thread->synchronized(function($me){ 

    $me->notify(); 

},$thread); 

?> 

在命令框输入：/usr/local/php-zts/bin/php Fetch.php

直接在网页没有输出，需要调用PHP脚本运行。

参照文章：

http://www.2cto.com/kf/201309/245093.html

http://blog.csdn.net/crz03128/article/details/25954441

编译了很久，做个记录。