PHP 5.x support for random_bytes() and random_int()

Symfony polyfill for the Mbstring extension

Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions

Symfony polyfill for ctype functions

Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions

PHP polyfills

Symfony polyfill for intl's ICU-related data and classes

Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions

Symfony polyfill for intl's Normalizer class and related functions

Symfony polyfill for the Iconv extension

Symfony polyfill backporting some PHP 8.0+ features to lower PHP versions

Symfony polyfill for intl's grapheme_* functions

Symfony utilities for portability of PHP codes

Symfony polyfill backporting some PHP 8.1+ features to lower PHP versions

Symfony polyfill backporting apcu_* functions to lower PHP versions

Symfony polyfill for uuid functions

Symfony polyfill backporting some PHP 8.3+ features to lower PHP versions

Set of polyfills for changed PHPUnit functionality to allow for creating PHPUnit cross-version compatible tests

A native polyfill of the PHP Trader extension, usable without PECL.

Symfony polyfill for intl's MessageFormatter class and related functions