How should php create a linux account with a validity period

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First confirm that the sudo command is installed

Then modify / etc/sudoers

Because / etc/sudoers is a read-only file, you need to modify it with visudo

Add a line at the end

User name ALL=NOPASSWD:/usr/sbin/useradd

The user name above is changed to your user name that executes the webserver program

For example, the default user name of apache is apache.

Then use the following php code (annotated in the main place)

PHP code: (please put