polyfill-php54 by symfony

This component provides functions unavailable in releases prior to PHP 5.5. Maintained by symfony on GitHub, where it has earned 107 stars from the community.

This component provides functions unavailable in releases prior to PHP 7.1. Maintained by symfony on GitHub, where it has earned 26 stars from the community.

This component provides functions unavailable in releases prior to PHP 5.6. Maintained by symfony on GitHub, where it has earned 1,556 stars from the community.