今天开发说php不能发邮件，一看发现没有openssl，想在编译php时就把openssl编译进去加--enable-ssl，如果没有安装的话，那么就按照下面的步骤添加openssl模块
cd /wdzj/source/php-5.6.11/ext/openssl
#/wdzj/lnmp/php5.6.11/bin/phpize
Cannot find config.m4.
Make sure that you run '/wdzj/lnmp/php5.6.11/bin/phpize' in the top level source directory of the module
cp config0.m4 config.m4
yum -y install autoconf
/wdzj/lnmp/php5.6.11/bin/phpize
./configure --with-openssl --with-php-config=/wdzj/lnmp/php5.6.11/bin/php-config
make; make install
vi /wdzj/lnmp/php5.6.11/lib/php.ini
extension = openssl.so
发送邮件报下面的错误
[Composer\Downloader\TransportException] The "http://packages.zendframework.com/packages.json" file could not be downloaded: SSL operation failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed Failed to enable crypto
解决办法下：
cd /wdzj/lnmp/php/php/extensions/no-debug-non-zts-20131226/
curl http://curl.haxx.se/ca/cacert.pem -o cacert.pem
然后修改php.ini文件 openssl.cafile=/wdzj/lnmp/php/php/extensions/no-debug-non-zts-20131226/cacert.pem
重启php-fpm