while installing Zabbix 3.2 version on RHEL 3.2 ,I am getting below issue .please help me out in resolving this issue .

while executing yum install zabbix-web-mysql , seeing below error , please see below bold error line seems it is dependency issue's .can you please assist , i f possible can you please co-ordinate with me in join.me or screen sharing though skype.

-> Finished Dependency Resolution
*Error: Package: zabbix-web-3.2.3-1.el7.noarch (zabbix)
Requires: php-mbstring
Error: Package: zabbix-web-3.2.3-1.el7.noarch (zabbix)
Requires: php-bcmath*
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yum can be configured to try to resolve such errors by temporarily enabling
disabled repos and searching for missing dependencies.
To enable this functionality please set 'notify_only=0' in /etc/yum/pluginconf.d/search-disabled-repos.conf