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PHP Dependency Injection Creates More Maintainable Code

“Although not originally conceived as such, PHP has over the
years evolved into a very capable object-oriented language, with
countless enterprise projects and a number of powerful frameworks
such as Symfony taking full advantage of these mature features.

“Of course, the advantages of object-orientation can only be
fully exploited when implemented in conjunction with best practices
such as encapsulation and inheritance. One such “implementational”
best practice is dependency injection, a design pattern that
facilitates the decoupling of otherwise dependent components.”


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