What is the use of functions in PHP

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Get_extension_funcs ()

This function returns the names of all methods contained in the extension module.

Print_r (get_extension_funcs ("swoole"))

/ / Array

/ / (

/ / [0] = > swoole_version

/ / [1] = > swoole_cpu_num

/ / [2] = > swoole_last_error

/ / [3] = > swoole_async_dns_lookup_coro

/ / [4] = > swoole_async_set

/ / [5] = > swoole_coroutine_create

/ /.

/ / [35] = > swoole_timer_clear

/ / [36] = > swoole_timer_clear_all

/ /)

Its argument is the name of the extension to be queried, so let's take a look directly at which methods are included in the native installation of Swoole. As you can see, there are a total of 37 method functions in Swoole4.4.

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