enable core dump

#1
I am on a DirectAdmin server, CloudLinux 9 with OLS 1.8.2, PHP Selector. In /usr/local/lsws/conf/httpd-phplimits.conf, I have added
Code:
env                LSAPI_ALLOW_CORE_DUMP=1
However, when testing with
Code:
kill -SIGSEGV 1527388
The PID 1527388 was killed, but no core dump file was created. How to enable core dump?
Thanks.
 
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