PHP多线程模拟实现秒杀抢单

<?phpset_time_limit(0);/*** 线程的执行任务*/class Threadrun extends Thread{  public $url;  public $data;  public $params;  public function __construct($url, $params=[])  {   $this->url = $url;   $this->params = $params;  }  public function run()  {   if(($url = $this->url))   {     $params = [      'goods_id'  => 1,      'activity_id'  => 1,      'user_id'   => isset($this->params['user_id']) ? $this->params['user_id'] : $this->getCurrentThreadId(),     ];     $startTime = microtime(true);     $this->data = [      'id'   => $params['user_id'],      'result'  => model_http_curl_get( $url, $params ),      'time'  => microtime(true)-$startTime,      'now'   => microtime(true),     ];   }  }}/*** 执行多线程*/function model_thread_result_get($urls_array){  foreach ($urls_array as $key => $value)  {   $threadPool[$key] = new Threadrun($value["url"],['user_id'=>$value['user_id']]);   $threadPool[$key]->start();  }  foreach ($threadPool as $thread_key => $thread_value)  {   while($threadPool[$thread_key]->isRunning())   {     usleep(10);   }   if($threadPool[$thread_key]->join())   {     $variable_data[$thread_key] = $threadPool[$thread_key]->data;   }  }  return $variable_data;}/*** 发送 HTTP 请求*/function model_http_curl_get($url,$data=[],$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, $userAgent);  curl_setopt($curl, CURLOPT_POST, true);  if( !empty($data) ) {   curl_setopt($curl, CURLOPT_POSTFIELDS, $data);  }  $result = curl_exec($curl);  curl_close($curl);  return $result;}/** * 友好的打印变量 * @param $val */function dump( $val ){  echo '<pre>';  var_dump($val);  echo '</pre>';}/** * 写日志 * @param $msg * @param string $logPath */function writeLog( $msg, $logPath='' ) {  if( empty($logPath) ) {   $logPath = date('Y_m_d').'.log';  }  if( !file_exists($logPath) ) {   $fp = fopen( $logPath,'w' );   fclose( $fp );  }  error_log( $msg.PHP_EOL, 3, $logPath);}/** * 生成日志信息 * @param $result * @param $timeDiff * @return bool|string */function createLog( $result, $timeDiff ){  if( empty($result) || !is_array($result) ) {   return false;  }  $succeed = 0;  $fail = 0;  foreach( $result as $v ) {   $times[] = $v['time'];   $v['result'] === false ? $fail++ : $succeed++;  }  $totalTime = array_sum( $times );  $maxTime = max( $times );  $minTime = min( $times );  $sum = count( $times );  $avgTime = $totalTime/$sum;  $segment = str_repeat('=',100);  $flag = $segment . PHP_EOL;  $flag .= '总共执行时间：' . $timeDiff . PHP_EOL ;  $flag .= '最大执行时间：' . $maxTime . PHP_EOL;  $flag .= '最小执行时间：' . $minTime . PHP_EOL;  $flag .= '平均请求时间：' . $avgTime . PHP_EOL;  $flag .= '请求数：' . $sum . PHP_EOL;  $flag .= '请求成功数：' . $succeed . PHP_EOL;  $flag .= '请求失败数：' . $fail . PHP_EOL;  $flag .= $segment . PHP_EOL;  return $flag;}/** * 发起秒杀请求 */function insertList( $urls, $logPath='' ){  $t = microtime(true);  $result = model_thread_result_get($urls);  $e = microtime(true);  $timeDiff = $e-$t;  echo "总执行时间：" . $timeDiff . PHP_EOL;  foreach( $result as $v ) {   $msg = '用户【' . $v['id'] . '】秒杀商品, 返回结果 ' . $v['result'] . ' 用时【' . $v['time'] . ' 秒】 当前时间【'.$v['now'].'】';   writeLog( $msg,$logPath );  }  $logStr = createLog( $result, $timeDiff);  writeLog( $logStr, $logPath );  return $result;}//发起秒杀请求for ($i=0; $i < 1000; $i++){  $urls_array[] = array("name" => "baidu", "url" => "http://***.***.com/seckill/shopping/listinsert");}$list = insertList( $urls_array, './inset.log' );//发起秒杀结果查询请求$urls_array = [];foreach( $list as $v ) {  if( $v['result'] === false ) {   continue;  }  $urls_array[] = array(        "name"  => "baidu",        "url"  => "http://***.***.com/seckill/shopping/query",        'user_id' => $v['id'],  );}insertList( $urls_array, './query.log' );