今天在新的服务器配置 php+apache的时候出现了一些错误：
在执行 /usr/local/apache2/bin/apachectl start 时，提示：
httpd: Syntax error on line 203 of /etc/httpd/conf/httpd.conf: Cannot load /usr/lib/httpd/modules/libphp5.so into server: /usr/lib/httpd/modules/libphp5.so: undefined symbol: zend_parse_parameters
google之，得到的结果如下
for those of you experienceing the zend_parse_paramater error from apache2, while loading libphp5.so:
/apache2.conf: Syntax error on line 1 of /etc/apache2/mods-enabled/php5.load: Cannot load /usr/lib/apache2/modules/libphp5.so into server: /usr/lib/apache2/modules/libphp5.so: undefined symbol: zend_parse_parameters
take a look at the ./configure output. if you get a message saying something similar to:
configure: warning: bison versions supported for regeneration of the Zend/PHP parsers: 1.28 1.35 1.75 1.875 2.0 2.1 2.2 2.3 2.4 2.4.1 (found: none).
try installing bison: sudo apt-get install bison
then make distclean then ./configure ... then make then make -i install
但是我在config.log日志并没有找到关于bision的任何waring。所以就死马当成活马医治。安装了bision的rpm包，然后重启安装php，重启apache，成功。