PHP - Location of php.ini on MacOS Mavericks

You can read the location once you can run a php file containing the phpinfo() command.

• Look then for "Configuration File (php.ini) Path". 
• You might get "/etc", which may exists as a directory or as an alias.
• But that doesn't mean that a php.ini really exists. 
• You may find only a php.ini.default.
• If so, php defaults are loaded, which can be confirmed by the phpinfo list entry "Loaded configuration file"... it may read none or be blank.
• If you want to enable you own php.ini, then copy php.ini.default as php.ini (in the same /etc directory).
• Then restart apache.
• Then re-run your php page to read phpinfo() again, and voila!