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How to check whether php has swoole installed:
Command line input php --ri swoole
If swoole is output The extended information indicates that your installation is successful!
99.999% of people can use swoole directly if this step is successful
No need to worry about whether php -m or phpinfo web page prints out whether there is swoole
Because swoole runs in cli mode, its functions are very limited in traditional fpm mode
Recommended learning: swoole tutorial
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