The following packages provide symfony/polyfill-php81
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PHP
symfony/polyfill-php81
Symfony polyfill backporting some PHP 8.1+ features to lower PHP versions
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empaphy/polyphill-php
A metapackage for PHP that installs the polyfills you need, and removes those that are redundant.
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sharkmachine/provides
A skeleton package that provides polyfills that are not needed