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- swoole custom error method
- How swoole customizes errors: swoole can customize errors in the ErrorHandlerInterface interface. When DEBUG.ENABLE is turned on, the custom error handling is effective. Just inject custom errors after the framework is initialized.
- Swoole 2198 2019-12-17 09:39:26
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- swoole error handling method
- In coroutine programming, try/catch can be used directly to handle exceptions. However, exceptions must be caught within the coroutine and cannot be caught across coroutines. Not only Exceptions thrown by the application layer, but also some underlying errors can be caught, such as function, class, and method not existing.
- Swoole 3207 2019-12-17 09:24:02
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- How to check swoole errors
- When a segmentation fault occurs using swoole, you can use the gdb tool to get a copy of bt information. To use gdb tracking, you need to add the --enable-debug parameter when compiling swoole.
- Swoole 2948 2019-12-17 09:17:39
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- Why is Swoole fast?
- Swoole4 can use fully synchronous code to implement asynchronous programs. There is no need to add any additional keywords to the PHP code. The bottom layer automatically performs coroutine scheduling to achieve asynchronous IO. Things that cannot be implemented in PHP, such as database connection pools and cache connection pools, can be implemented under the Swoole engine, and the operating efficiency of the system will be greatly improved.
- Swoole 4412 2019-12-16 14:40:45
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- How does swoole support php syntax?
- Because swoole is an extension running under PHP, it is actually different from ordinary extensions. After running, the swoole extension will take over control of PHP and enter the event loop. When an IO event occurs, swoole will automatically call back the specified PHP function.
- Swoole 2144 2019-12-16 14:29:44
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- How does swoole determine whether fd is connected?
- Swoole uses the heartbeat mechanism to determine whether the fd is connected. The client regularly sends a heartbeat packet to tell the server that I am still alive. The server regularly checks the list of all clients to see if the time of their last heartbeat packet is too long. If it is too long, it is considered to have been If there is no heartbeat, the connection is determined to be dead and the connection is actively closed.
- Swoole 5505 2019-12-16 13:57:44
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- Can swoole set multiple timers?
- Swoole can set multiple timers. The minimum granularity of the swoole timer is 1 second. Supports multiple timers. Note that there cannot be two timers with the same interval. After adding the timer, you need to write a callback function.
- Swoole 2513 2019-12-16 13:52:17
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- Which framework of swoole is used the most?
- The Swoft framework of swoole is widely used. Swoft is a PHP microservice coroutine framework based on the Swoole extension. Swoft, like Go, has a built-in coroutine network server and commonly used coroutine clients and is resident in memory, without relying on traditional PHP-FPM.
- Swoole 3404 2019-12-16 13:45:41
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- Is the threshold for swoole high?
- Swoole has a high threshold. Swoole is for experts. The threshold is relatively high and requires users to have deep skills. Swoole is actually just a low-level library, not a complete product that can be used. However, there are many PHP frameworks and programs based on swoole, which can be developed directly based on these projects.
- Swoole 2244 2019-12-16 13:36:42
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- Does the swoole service only start one process?
- No, if you start a TCP server, 3 worker processes and 3 task processes will be started. Because the task function is enabled, the callback functions of the onTask and onFinish events must be registered.
- Swoole 2236 2019-12-16 11:59:41
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- What is the swoole port?
- A port can be thought of as an outlet for communication between the device and the outside world. Ports can be divided into virtual ports and physical ports. Virtual ports refer to ports inside a computer or a switch router and are invisible. Swoole-1.8.0 adds support for multi-port mixed protocols. Server can listen on multiple ports.
- Swoole 3152 2019-12-16 11:51:32
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- The difference between swoole versions
- The difference between swoole versions: The biggest update of Swoole 2.0 is the added support for coroutine. In Swoole version 3.0, we have implemented a new PHP built-in coroutine scheduler, based on ZendVM's EG (vm_interrupt) mechanism.
- Swoole 3528 2019-12-16 11:39:21
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- How to apply swoole_mysql
- Swoole provides a new asynchronous MySQL client in version 1.8.6. The bottom layer implements the MySQL communication protocol by itself. There is no need to rely on other third-party libraries. You can directly use the swoole_mysql->__construct command to create an asynchronous mysql client.
- Swoole 2474 2019-12-16 11:23:27
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- The difference between swoole coroutine and asynchronous
- Starting from version 4.0, Swoole provides complete coroutine + channel features, bringing a new CSP programming model. Swoole provides the function of asynchronous task processing, which can deliver an asynchronous task to the TaskWorker process pool for execution without affecting the processing speed of the current request.
- Swoole 8373 2019-12-16 11:05:42
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- Why does swoole have high performance?
- swoole is written in pure C and does not rely on other third-party libraries; swoole does not use libevent, so there is no need to install libevent; swoole does not rely on PHP's stream/sockets/pcntl/posix/sysvmsg and other extensions.
- Swoole 3358 2019-12-16 10:57:00
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