Ciao,
Php-osx doesn't overwrite the php binaries installed by Apple, but installs everything in /usr/local/php5. The new php binary is therefore in /usr/local/php5/bin/php.
You can also adjust your PATH do include that directory, eg. write into your ~/.profile file the following
export PATH=/usr/local/php5/bin:$PATH
Also they introduced their own ini file to be able to easily overwrite the standard values with their recommended values. You can find it in /usr/local/php5/php.d/99-liip-developer.ini
As this is read last, it will overwrite values defined in other files. You can also just delete the file.
Cristiana,
OracleCloud.