I'm on Mac OS X Mojave

Step 1

I ran

php -i | grep php.ini

I got

Configuration File (php.ini) Path => /usr/local/php5/lib
Loaded Configuration File => /usr/local/php5/lib/php.ini

Step 2

I open up the ini file

vi /usr/local/php5/lib/php.ini , 

and update memory_limit to -1 

Step 3

I ran

php -i | grep memory_limit

I got

memory_limit => 256M => 256M                                                                                      

Step 4

I restart my

sudo apachectl -k restart

and type in my password

and tried

php -i | grep memory_limit

again, I still got

memory_limit => 256M => 256M                                                                                      

Seems like my chages never take any effect ...

Do I need to start any service on a Mac? If so, what command to do that?

phpinfo