polyfill-intl-normalizer by symfony

Symfony polyfill for intl's grapheme_* functions. Maintained by symfony on GitHub, where it has earned 1,724 stars from the community.

Symfony polyfill for intl's ICU-related data and classes. Maintained by symfony on GitHub, where it has earned 2,588 stars from the community.

Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions. Maintained by symfony on GitHub, where it has earned 2,370 stars from the community.