如何利用phpize在生产环境中为php添加新的扩展php-bcmath
在日常的开发当中，随着开发的功能越来越复杂。对运行环境的要求也就随着需求的变化需要不断地更新和变化。一个在线的生产系统不可能一开始就满足了所有的运行依赖，因此动态地添加依赖就显得比较必要了。如果你的应用是基于lanmp的话，那么很有可能某天需要添加一个apache的扩展或者php的扩展。此次记录一下如何添加一个php的扩展。由于需要接入银联的接口，而查看了下运行环境，发现缺少了高精度运算的扩展php-bcmath。
程序运行的时候报如下异常
php-bcmath【Fatal error: Call to undefined function bcscale()
因此此处需要用phpize进行安装新的php扩展php-bcmath
1、安装php-bcmath扩展
cd /www/wdlinux/apache_php-5.2.17/lib/php/extensions//www/wdlinux/apache_php-5.2.17/bin/phpize./configure --enable-bcmath --with-php-config=/www/wdlinux/apache_php-5.2.17/bin/php-configmakemake testmake install
安装好以后可以看到bcmath.so的安装目录为
/www/wdlinux/apache_php-5.2.17/lib/php/extensions/no-debug-zts-20060613/bcmath.so
2、将bcmath.so扩展添加到php.ini
编辑/www/wdlinux/wdphp/lib/php.ini
vi /www/wdlinux/wdphp/lib/php.iniextension="/www/wdlinux/apache_php-5.2.17/lib/php/extensions/no-debug-zts-20060613/bcmath.so"
3、重启服务
service httpd restart
4、phpinfo()检查是否安装成功
创建文件phpinfo_test.php
<?php phpinfo()?>
在浏览器中运行http://你的域名/phpinfo_test.php
如果安装成功，你可以找到这样的结果项
bcmath
| BCMath support | enabled |
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