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- What can swoole do?
- swoole is a PHP extension written in C language that can implement many functions of the network layer and enable PHP developers to write high-performance asynchronous concurrent TCP, UDP, Unix Socket, HTTP, and WebSocket services.
- Swoole 3782 2019-12-13 11:26:11
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- Which service is used for swoole Internet of Things development?
- Swoole IoT development uses Swoole TCP Server (service) and Swoole WebScoket Server (service). For example, the remote control background of Doit Car is completely developed based on Swoole, and Swoole TCP Server is responsible for communicating with the car.
- Swoole 3728 2019-12-13 09:47:08
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- Why does swoole need to be started using the command line?
- The swoole-based server should be run in command line mode to ensure that there is only one instance (the port cannot be opened repeatedly). There is no need to add any additional keywords to the PHP code. The bottom layer automatically performs coroutine scheduling to implement asynchronous IO.
- Swoole 2432 2019-12-13 09:31:39
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- Why is swoole faster than fpm?
- Swoole is responsible for monitoring event changes of Socket handles by Reactor (epoll's IO reuse method) to solve high concurrency problems. Save time on PHP code initialization through memory resident. When using bulky frameworks, the acceleration effect of using swoole is very obvious.
- Swoole 3033 2019-12-13 09:13:29
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- How does swoole work?
- Swoole has two operating modes, namely single-thread mode (traditional asynchronous non-blocking server) and process mode (multi-process mode is the most complex mode, using a large number of inter-process communication and process management mechanisms).
- Swoole 3052 2019-12-12 15:53:57
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- Is swoole a framework?
- swoole is a framework written in PHP code. The swoole framework, like the PHP framework, is suitable for web development. The swoole framework relies on the swoole extension and is an application example of the swoole extension.
- Swoole 2096 2019-12-12 14:44:32
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- Can swoole use cookies?
- swoole can use cookies, and you can use Http\Response->cookie to set the cookie information of the HTTP response. This method parameter is exactly the same as PHP's setcookie. Cookie setting must be before the end method.
- Swoole 2458 2019-12-12 14:25:33
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- swoole has several processes by default
- swoole has 4 processes by default. Master process: main process, Manger process: management process, Worker process: working process, Task process: asynchronous task working process.
- Swoole 3084 2019-12-12 14:17:10
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- What are the swoole frameworks?
- The swoole frameworks include Hyperf, Swoft, easySwoole, MixPHP, Swoolefy and other frameworks. Hyperf is a high-performance, highly flexible PHP coroutine framework based on Swoole 4.4+.
- Swoole 17866 2019-12-12 14:08:20
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- What problem did swoole solve?
- PHP's existing application methods are all based on http, which is relatively weak for situations that require fast real-time response. For example, online games or push services generally need to maintain a TCP connection with the user for a long time in order to respond and push information in real time. swoole is designed to solve such application scenarios.
- Swoole 3163 2019-12-12 13:56:08
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- Is the swoole timer a single process?
- The swoole timer is not a separate process. Millisecond precision timer. The bottom layer is implemented based on epoll_wait and setitimer. The data structure uses a minimum heap, which can support adding a large number of timers. Use setitimer and signal implementation in synchronization processes, such as Manager and TaskWorker processes.
- Swoole 2022 2019-12-12 13:41:56
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- What swoole2.0 can do
- Based on the Swoole2.0 coroutine, PHP developers can write code in a synchronous manner, and the underlying layer automatically schedules the coroutine and transforms it into asynchronous IO. Solve the problem of nested callbacks in traditional asynchronous programming.
- Swoole 1918 2019-12-12 13:19:24
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- Can swoole configure certificates?
- swoole can configure certificates. First install swoole's openssl support, recompile and install the swoole source code, add --enable-openssl, use websocket ssl instead of ws in the code, and change the connection to wss in the client.
- Swoole 2817 2019-12-12 11:52:00
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- Will swoole memory become larger and larger?
- The swoole memory will not become larger and larger. The underlying principle of memory management after the Server is started is the same as that of the ordinary php-cli program. In the event callback function, you must be careful about memory leaks when concatenating strings of non-local variables. For example, TestClass::$string .= $data, there may be memory leaks.
- Swoole 3719 2019-12-12 11:45:59
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- Can swoole do live broadcast?
- swoole can do live broadcast. Implementation steps: 1. Swoole creates 2 monitors. 2. The browser uses jsmpeg to connect to the WebSocket service provided by Swoole to obtain video stream playback. 3. Use ffmpeg to transcode the live video stream.
- Swoole 4098 2019-12-12 11:32:46
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