21 lines
1.4 KiB
Markdown
21 lines
1.4 KiB
Markdown
---
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title: "PHP7 over PHP5"
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ring: trial
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quadrant: languages-and-frameworks
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---
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PHP 5 has been around for a very long time, and can be considered as the PHP version that defined where PHP wants to go in the future.
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With proper OOP, support for clojures and a steadily improving type system, it has become a very mature language.
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However, in the past 3 years, Facebook introduced HHVM, which became a major influence on PHP 7 and eventually brought a lot of improvements not only for the execution speed, but also with proper type hints and other features.
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Here at AOE, we have numerous PHP projects, and we often kept it backwards-compatible to make sure that it will run on older systems. This is comparable to the procedure most frameworks (Magento, OroPlatform and derived projects) use.
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Now, PHP 5 has reached its end--of-life, and it is time to discontinue the backqards-compatibility in favor of better and more stable applications.
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Even though we can use the PHP 7 runtime while being PHP 5-compatible, it is not considered good practice anymore, as we can now rely on the PHP 7 features and use all of its advantages.
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One of the major points PHP 7 supports is proper typehinting and return types (apart from PhpDocs), which makes [static analysis](https://extranet.aoe.com/confluence/display/knowledge/phan) much easier and can improve the overall code quality significantly.
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