$ sudo yum install phpMyAdmin

$ sudo yum --enablerepo=remi-php71 install phpMyAdmin

--> Finished Dependency Resolution
Error: Package: php-tidy-5.4.16-7.el7.x86_64 (epel)
       Requires: php(api) = 20100412-64
       Installed: php-common-7.1.7-1.el7.remi.x86_64 (@remi-php71)
           php(api) = 20160303-64
       Available: php-common-5.4.16-42.el7.x86_64 (base)
           php(api) = 20100412-64
       Available: php-common-7.1.6-1.el7.remi.x86_64 (remi-php71)
           php(api) = 20160303-64
Error: Package: php-tidy-5.4.16-7.el7.x86_64 (epel)
       Requires: php(zend-abi) = 20100525-64
       Installed: php-common-7.1.7-1.el7.remi.x86_64 (@remi-php71)
           php(zend-abi) = 20160303-64
       Available: php-common-5.4.16-42.el7.x86_64 (base)
           php(zend-abi) = 20100525-64
       Available: php-common-7.1.6-1.el7.remi.x86_64 (remi-php71)
           php(zend-abi) = 20160303-64
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest