node.js - 如何利用php执行nodejs文件

<code>        public function execTask ($dirPath)
        {
            $serverPath = self::$serverPath;
            exec("node httpd.js $serverPath",$info, $val);
            var_dump($info);
            echo "$val";
        }
</code>

<code>        public function execTask ($dirPath)
        {
            $serverPath = self::$serverPath;
            exec("node httpd.js $serverPath",$info, $val);
            var_dump($info);
            echo "$val";
        }
</code>

<code>/**
* 返回的汉语文字信息在windows中是GB2312编码，需要手动改成UTF8
*  iconv("GB2312","UTF-8",$read);
* @param $cmd
* @return array
*/
public function execFront($cmd)
{
    $response = array();
    $handle = popen("$cmd 2>&1", 'r');

    while ($read = fread($handle, 20096)) {

        if(!mb_detect_encoding($read, 'UTF-8', true))
            iconv("GB2312","UTF-8",$read);

        $response[] = trim($read);
    }
    pclose($handle);
    flush();

    return $response;
}

/**
 * @param $cmd
 */
public function execBackend($cmd)
{
    if (substr(php_uname(), 0, 7) == "Windows"){
        pclose(popen("start cmd /c ". $cmd, "r"));
    }
    else {
        exec($cmd . " > /dev/null &");
    }

    return;
}
</code>