How to write shell command to string type using php?

Question

Perl

How to write shell command to string type using php? Tried different ways but nothing worked.

$command = "sudo useradd -m -p $(perl -e 'print crypt($ARGV[0], "123321")' 13321 ) ".$_user_server." && tar -xf /home/files/cs.tar -C /home/".$_user_server."/ && chown ".$_user_server." -Rf /home/".$_user_server." && chmod 777 /home/".$_user_server;

Answer 1

$command = "sudo useradd -m -p $(perl -e 'print crypt($ARGV[0], \"123321\")' 13321 ) ".$_user_server." && tar -xf /home/files/cs.tar -C /home/".$_user_server."/ && chown ".$_user_server." -Rf /home/".$_user_server." && chmod 777 /home/".$_user_server;

Answer 2

And isn't it a string? There is a perception that this
can interfere. Replace quotes with single quotes and
escape this