[ 源代码： php-symfony-polyfill ]
软件包：php-symfony-polyfill-php73（1.32.0-1）
php-symfony-polyfill-php73 的相关链接
Debian 的资源：
下载源码包 php-symfony-polyfill：
- [php-symfony-polyfill_1.32.0-1.dsc]
- [php-symfony-polyfill_1.32.0.orig.tar.gz]
- [php-symfony-polyfill_1.32.0-1.debian.tar.xz]
维护小组：
外部的资源：
- 主页 [symfony.com]
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试制（Experimental）软件包
警告：这个软件包来自于 experimental 发行版。这表示它很有可能表现出不稳定或者出现 bug ，甚至是导致资料损失。请务必在使用之前查阅 changelog 以及其他潜在的文档。
Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions
This component provides functions unavailable in releases prior to PHP 7.3:
* array_key_first * array_key_last * hrtime * is_countable * JsonException
The Symfony Polyfill project backports features found in the latest PHP versions and provides compatibility layers for some extensions and functions. It is intended to be used when portability across PHP versions and extensions is desired.
Symfony is a PHP framework, a set of tools and a development methodology.