CentOS 7 – Resolve php71w-common Conflicts with php-common-5.4.16

I cant install php-bcmath via yum install php-bcmath because got this error message

Failed to set locale, defaulting to C
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 * base: centos.netonboard.com
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 * extras: centos.netonboard.com
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 * webtatic: sp.repo.webtatic.com
Resolving Dependencies
--> Running transaction check
---> Package php-bcmath.x86_64 0:5.4.16-45.el7 will be installed
--> Processing Dependency: php-common(x86-64) = 5.4.16-45.el7 for package: php-bcmath-5.4.16-45.el7.x86_64
--> Running transaction check
---> Package php-common.x86_64 0:5.4.16-45.el7 will be installed
--> Processing Dependency: libzip.so.2()(64bit) for package: php-common-5.4.16-45.el7.x86_64
--> Running transaction check
---> Package libzip.x86_64 0:0.10.1-8.el7 will be installed
--> Processing Conflict: php71w-common-7.1.22-1.w7.x86_64 conflicts php-common < 7.1
--> Finished Dependency Resolution
Error: php71w-common conflicts with php-common-5.4.16-45.el7.x86_64
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

How to remove completely the php-common-5.4.16-45.el7.x86_64 from my Centos 7? I'm using laravel 5 for my project. Please advice. Thank you.