mac 下php和apache下的配置相关

/usr/lib/php/extensions/no-debug-zts-20060613/xxx.so
/usr/lib/php/extensions/no-debug-non-zts-20090626/xxx.so

      $ php -i | grep extension_dir
        extension_dir => /usr/lib/php/extensions/no-debug-zts-20060613 =>
      /usr/lib/php/extensions/no-debug-zts-20060613  

    php.ini所在路径：/private/etc/php.ini