Does php-fpm depend on php-cgi?

Environmental Description

• CentOS7

• php version: php 5.6

• php development environment: nginx+php+mysql

I read this question, but I don’t know if it is correct. https://segmentfault.com/q/10...
Under CentOS7, when searching for php-related processes, I only see the php-fpm process and not the php-cgi process. I am very confused and begging for answers

<code class="shell">[vagrant@lnmptest dishes]$ sudo ps -ef | grep php
root     16954     1  0 14:08 ?        00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
nobody   16955 16954  0 14:08 ?        00:00:00 php-fpm: pool www
nobody   16956 16954  0 14:08 ?        00:00:00 php-fpm: pool www
vagrant  18676  4907  0 15:46 pts/0    00:00:00 grep --color=auto php</code>

Does the php-fpm sub-process come with its own php interpreter, or does it need to call php-cgi to interpret php?

Reply content:

Environmental Description

• CentOS7

• php version: php 5.6

• php development environment: nginx+php+mysql

I read this question, but I don’t know if it is correct. https://segmentfault.com/q/10...
Under CentOS7, when searching for php-related processes, I only see the php-fpm process and not the php-cgi process. I am very confused and begging for answers

<code class="shell">[vagrant@lnmptest dishes]$ sudo ps -ef | grep php
root     16954     1  0 14:08 ?        00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
nobody   16955 16954  0 14:08 ?        00:00:00 php-fpm: pool www
nobody   16956 16954  0 14:08 ?        00:00:00 php-fpm: pool www
vagrant  18676  4907  0 15:46 pts/0    00:00:00 grep --color=auto php</code>

Does the php-fpm sub-process come with its own php interpreter, or does it need to call php-cgi to interpret php?

php-fpm and php-cgi are different and do not depend on each other

Understand cgi, php-cgi php-fpm
cgi is the standard for web server to transmit data, and has nothing to do with language
php-cgi is the cgi implementation of php, which is the interpreter of php
php-fpm manages php-cgi Process manager, similar to spawn-fcgi, because php-fpm is too good, so php-fpm has been integrated into the kernel since 5.3