Get PHP MySQL working on Leopard OS X
on Sunday 31st May, 2009 Gabe speculated thusly…Installing MySQL on OS X has become infinately easier since you can now download an Apple DMG from the MySQL website which takes care of the fine detail.
However, one thing that changed with Leopard is the socket for Mysql. It moved to /private/tmp, so you may need to configure your php.ini file to point it to the new location.
To do so, open the file /private/etc/php.ini, (if no such file exists, then make a copy of /private/etc/php.ini.default and rename it to php.ini) and edit that.
You have two lines to modify:
mysql.default_socket =
becomes:
mysql.default_socket = /private/tmp/mysql.sock
and mysqli.default_socket =
becomes:
mysqli.default_socket = /private/tmp/mysql.sock