Install PHP7-ldap module

Hi
We're running ISPConfig 3.1 on CentOS 7. We have 3 PHP versions installed:
- PHP 5.4.16
- PHP 7.1.20
- PHP 7.2.3
Now we need to enable PHP7-ldap module for one website that is running on PHP 7.2.3.

I tried to install php72u-ldap module via yum but I got an error below that it conflicts with PHP 5.4.16 ? I don't want to remove PHP 5.4.1.6 since it is still used for some websites running on this server, but I need to install LDAP for PHP 7.2.3 ?
Is this possible and how ?

---> Package php72u-ldap.x86_64 0:7.2.14-1.ius.centos7 will be installed
---> Package php72u-common.x86_64 0:7.2.14-1.ius.centos7 will be installed
--> Processing Conflict: php72u-ldap-7.2.14-1.ius.centos7.x86_64 conflicts php-ldap < 7.2.14-1.ius.centos7
--> Processing Conflict: php72u-common-7.2.14-1.ius.centos7.x86_64 conflicts php-common < 7.2.14-1.ius.centos7

Error: php72u-common conflicts with php-common-5.4.16-46.el7.x86_64
Error: php72u-ldap conflicts with php-ldap-5.4.16-46.el7.x86_64

Thank you for you help
Regards,
Mike