Snow Leopard 中带的 PHP 是 5.3 的，有点太超前了，还是 php-2.x 用着比较习惯，不过 2.x 版的 php 在 SL 中编译起来有点麻烦，需要手工改 Makefile 才能正确编译（主要就是 libiconv 这个库的问题)。
折腾到半夜，终于搞定了，记录一下：
1. 先用 port 安装一些依赖的库 sudo port -v install t1lib jpeg libpng libmcrypt libxml2 gettext curl 2. configuration CFLAGS="-arch x86_64 -I/opt/local/include/" LDFLAGS="-L/opt/local/lib" \ ./configure --prefix=/usr/local/php \ --with-apxs2=/usr/local/apache/bin/apxs \ --with-config-file-path=/etc \ --with-config-file-scan-dir=/etc/php.d \ --with-openssl=shared,/usr \ --with-zlib=/usr \ --with-zlib-dir=/usr \ --with-xpm-dir=shared,/usr \ --with-gd \ --with-ldap=shared \ --with-xmlrpc \ --enable-exif \ --enable-soap=shared \ --enable-sqlite-utf8 \ --enable-wddx=shared \ --enable-ftp=shared \ --enable-sockets \ --with-bz2=shared,/usr \ --enable-zip=shared \ --enable-pcntl \ --enable-shmop \ --enable-sysvsem=shared \ --enable-sysvshm=shared \ --enable-sysvmsg=shared \ --enable-mbstring \ --enable-bcmath \ --with-libxml-dir=/opt/local \ --with-xsl=/opt/local \ --with-gettext=/opt/local \ --with-png-dir=/opt/local \ --with-jpeg-dir=/opt/local \ --enable-gd-native-ttf \ --with-mysql=/usr/local/mysql \ --with-mysqli=/usr/local/mysql/bin/mysql_config \ --with-pdo-mysql=/usr/local/mysql \ --with-mcrypt=/opt/local \ --with-iconv=/opt/local \ --with-t1lib=/opt/local \ --with-curl=/opt/local \ --with-snmp=shared --enable-cli \ --enable-cgi \ --enable-fastcgi \ --enable-force-cgi-redirect \ 3. hack 修改Makefile (line 19) MH_BUNDLE_FLAGS=... 在 -L/usr/lib 前面添加 -L/opt/local/lib (line 130) 在EXTRA_LIBS=... 最后添加 -lresolv 4. build make && make install