cd php-version/ext/pcntl phpize ./configure && make && make install cp /usr/lib/php/modules/pcntl.so /usr/lib64/php/modules/pcntl.so echo "extension=pcntl.so" >> /etc/php.ini /etc/init.d/httpd restart 

<?php header('content-type:text/html;charset=utf-8' );  // 必須加載擴展 if (!function_exists("pcntl_fork")) {  die("pcntl extention is must !"); } //總進程的數量 $totals = 3; // 執行的腳本數量 $cmdArr = array(); // 執行的腳本數量的數組 for ($i = 0; $i < $totals; $i++) {  $cmdArr[] = array("path" => __DIR__ . "/run.php", 'pid' =>$i ,'total' =>$totals); }  /* 展開：$cmdArr Array (  [0] => Array  (   [path] => /var/www/html/company/pcntl/run.php   [pid] => 0   [total] => 3  )  [1] => Array  (   [path] => /var/www/html/company/pcntl/run.php   [pid] => 1   [total] => 3  )  [2] => Array  (   [path] => /var/www/html/company/pcntl/run.php   [pid] => 2   [total] => 3  ) ) */  pcntl_signal(SIGCHLD, SIG_IGN); //如果父進程不關心子進程什么時候結束,子進程結束后，內核會回收。 foreach ($cmdArr as $cmd) {  $pid = pcntl_fork(); //創建子進程  //父進程和子進程都會執行下面代碼  if ($pid == -1) {  //錯誤處理：創建子進程失敗時返回-1.  die('could not fork');  } else if ($pid) {  //父進程會得到子進程號，所以這里是父進程執行的邏輯  //如果不需要阻塞進程，而又想得到子進程的退出狀態，則可以注釋掉pcntl_wait($status)語句，或寫成：  pcntl_wait($status,WNOHANG); //等待子進程中斷，防止子進程成為僵尸進程。  } else {  //子進程得到的$pid為0, 所以這里是子進程執行的邏輯。  $path = $cmd["path"];  $pid = $cmd['pid'] ;  $total = $cmd['total'] ;  echo exec("/usr/bin/php {$path} {$pid} {$total}")."/n";  exit(0) ;  } } ?>