workerman定时器使用
addint \Workerman\Lib\Timer::add(float $time_interval, callable $callback [,$args = array(), bool $persistent = true])定时执行某个函数或者类方法参数time_interval多长时间执行一次，单位秒，支持小数，可以精确到0.001，即精确到毫秒级别。callback回调函数注意：如果回调函数是类的方法，则方法必须是public属性args回调函数的参数，必须为数组，数组元素为参数值persistent是否是持久的，如果只想定时执行一次，则传递false（只执行一次的任务在执行完毕后会自动销毁，不必调用Timer::del()）。默认是true，即一直定时执行。返回值返回一个整数，代表计时器的timerid，可以通过调用Timer::del($timerid)销毁这个计时器。示例1、定时函数为匿名函数（闭包）use \Workerman\Worker;use \Workerman\Lib\Timer;require_once './Workerman/Autoloader.php';$task = new Worker();// 开启多少个进程运行定时任务，注意多进程并发问题$task->count = 1;$task->onWorkerStart = function($task){ // 每2.5秒执行一次 $time_interval = 2.5; Timer::add($time_interval, function() { echo "task run\n"; });};// 运行workerWorker::runAll();2、定时函数为普通函数require_once './Workerman/Autoloader.php';use \Workerman\Worker;use \Workerman\Lib\Timer;// 普通的函数function send_mail($to, $content){ echo "send mail ...\n";}$task = new Worker();$task->onWorkerStart = function($task){ $to = 'workerman@workerman.net'; $content = 'hello workerman'; // 10秒后执行发送邮件任务，最后一个参数传递false，表示只运行一次 Timer::add(10, 'send_mail', array($to, $content), false);};// 运行workerWorker::runAll();3、定时函数为类的方法require_once './Workerman/Autoloader.php';use \Workerman\Worker;use \Workerman\Lib\Timer;class Mail{ // 注意，回调函数属性必须是public public function send($to, $content) { echo "send mail ...\n"; }}$task = new Worker();$task->onWorkerStart = function($task){ // 10秒后发送一次邮件 $mail = new Mail(); $to = 'workerman@workerman.net'; $content = 'hello workerman'; Timer::add(10, array($mail, 'send'), array($to, $content), false);};// 运行workerWorker::runAll();4、定时函数为类方法（类内部使用定时器）require_once './Workerman/Autoloader.php';use \Workerman\Worker;use \Workerman\Lib\Timer;class Mail{ // 注意，回调函数属性必须是public public function send($to, $content) { echo "send mail ...\n"; } public function sendLater($to, $content) { // 回调的方法属于当前的类，则回调数组第一个元素为$this Timer::add(10, array($this, 'send'), array($to, $content), false); }}$task = new Worker();$task->onWorkerStart = function($task){ // 10秒后发送一次邮件 $mail = new Mail(); $to = 'workerman@workerman.net'; $content = 'hello workerman'; $mail->sendLater($to, $content);};// 运行workerWorker::runAll();5、定时函数为类的静态方法require_once './Workerman/Autoloader.php';use \Workerman\Worker;use \Workerman\Lib\Timer;class Mail{ // 注意这个是静态方法，回调函数属性也必须是public public static function send($to, $content) { echo "send mail ...\n"; }}$task = new Worker();$task->onWorkerStart = function($task){ // 10秒后发送一次邮件 $to = 'workerman@workerman.net'; $content = 'hello workerman'; // 定时调用类的静态方法 Timer::add(10, array('Mail', 'send'), array($to, $content), false);};// 运行workerWorker::runAll();6、定时函数为类的静态方法(带命名空间)namespace Task;require_once './Workerman/Autoloader.php';use \Workerman\Worker;use \Workerman\Lib\Timer;class Mail{ // 注意这个是静态方法，回调函数属性也必须是public public static function send($to, $content) { echo "send mail ...\n"; }}$task = new Worker();$task->onWorkerStart = function($task){ // 10秒后发送一次邮件 $to = 'workerman@workerman.net'; $content = 'hello workerman'; // 定时调用带命名空间的类的静态方法 Timer::add(10, array('\Task\Mail', 'send'), array($to, $content), false);};// 运行workerWorker::runAll();7、定时器中销毁当前定时器（use闭包方式传递$timer_id）use \Workerman\Worker;use \Workerman\Lib\Timer;require_once './Workerman/Autoloader.php';$task = new Worker();$task->onWorkerStart = function($task){ // 计数 $count = 1; // 要想$timer_id能正确传递到回调函数内部，$timer_id前面必须加地址符 & $timer_id = Timer::add(1, function()use(&$timer_id, &$count) { echo "Timer run $count\n"; // 运行10次后销毁当前定时器 if($count++ >= 10) { echo "Timer::del($timer_id)\n"; Timer::del($timer_id); } });};// 运行workerWorker::runAll();8、定时器中销毁当前定时器（参数方式传递$timer_id）require_once './Workerman/Autoloader.php';use \Workerman\Worker;use \Workerman\Lib\Timer;class Mail{ public function send($to, $content, $timer_id) { // 临时给当前对象添加一个count属性，记录定时器运行次数 $this->count = empty($this->count) ? 1 : $this->count; // 运行10次后销毁当前定时器 echo "send mail {$this->count}...\n"; if($this->count++ >= 10) { echo "Timer::del($timer_id)\n"; Timer::del($timer_id); } }}$task = new Worker();$task->onWorkerStart = function($task){ $mail = new Mail(); // 要想$timer_id能正确传递到回调函数内部，$timer_id前面必须加地址符 & $timer_id = Timer::add(1, array($mail, 'send'), array('to', 'content', &$timer_id));};// 运行workerWorker::runAll();9、只在指定进程中设置定时器一个worker实例有4个进程，只在id编号为0的进程上设置定时器。use Workerman\Worker;use Workerman\Lib\Timer;require_once './Workerman/Autoloader.php';$worker = new Worker();$worker->count = 4;$worker->onWorkerStart = function($worker){ // 只在id编号为0的进程上设置定时器，其它1、2、3号进程不设置定时器 if($worker->id === 0) { Timer::add(1, function(){ echo "4个worker进程，只在0号进程设置定时器\n"; }); }};// 运行workerWorker::runAll();
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