A window.fetch JavaScript polyfill.
Standard Library
History.js gracefully supports the HTML5 History/State APIs (pushState, ...
PHP 5.x support for random_bytes() and random_int()
Symfony polyfill for the Mbstring extension
Automatic polyfill service.
ECMAScript 5 compatibility shims for legacy (and modern) JavaScript engines
🐕 Bare minimum 500b fetch polyfill.
Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions
Promise packages, patterns, chat, and tutorials
A Javascript library for working with native objects.
Symfony polyfill for ctype functions
Shim to insulate apps from spec changes and prefix differences. Latest a...
Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions
This component provides features unavailable in releases prior to PHP 7.0.