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    PHP 7.2 -- Update the severely outdated intl extension

    The only version of the Intl extension that Centos6/VHM/EasyApache4 will let you install for PHP7.2 is an old version (1.1.0) from 2009 with an ICU version of 4.2.1.... This is over 10 years old and causes compatibility issues with newer technologies, such as email communications in Magento 2.3.1.


    There is a constant that has been deprecated in PHP 7.2 called INTL_IDNA_VARIANT_2003; and programs that use it instead need to use the constant INTL_IDNA_VARIANT_UTS46. From my research, the ICU version needs to be at least 4.6 to support this constant.


    Is anyone familiar with updating the Intl extension from SSH? Is the Intl extension the only thing that needs updated or is there a separate ICU library on CentOS that would also need updated?