Libraries tagged by compatibility

A set of rulesets for PHP_CodeSniffer to check for PHP cross-version compatibility issues in projects, while accounting for polyfills provided by the Paragonie polyfill libraries.

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Amends the composer class loader to support class aliases to provide backwards compatibility for packages

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Env is a lightweight library bringing .env file parser compatibility to PHP. In short - it enables you to read .env files with PHP.

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Symfony polyfill backporting some PHP 7.4+ features to lower PHP versions

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PHPUnit cross-version compatibility layer for testing plugins and themes build for WordPress

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PHP library for converting the version of PDF files (for compatibility purposes).

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Adapter to provide compatibility with the Symfony's event dispatcher interface in all versions with the PSR-14 specification.

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Compatibility layer for PSR-7 double pass and PSR-15 middlewares.

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A compatibility pack for using Amazon SimpleDB with v3 of the AWS SDK for PHP

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A command-line tool to check PHP 5.3 - 5.6 code compatibility with PHP 7

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PHPQRCode porting and changed for PHP 5.3 compatibility

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A set of sniffs for PHP_CodeSniffer that checks for PHP cross-version compatibility. This is a fork of phpcompatibility/php-compatibility

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Compatibility library for Draft PSR-15 HTTP Middleware

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Symfony polyfill backporting some PHP 7.1+ features to lower PHP versions

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Polyfill new (5.6+) features into old (5.4+) versions of PHP

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