Traits are a mechanism that allows you to create reusable code in languages like PHP where multiple inheritance is not supported. A Trait cannot be instantiated on its own.
It's important that a developer know the powerful features of the language (s)he is working on, and Trait is one of such features.
What is encapsulation technique?
How do I create an input stream?
How do I create an output stream?
How do I close sockets?
Explain simple mail transfer protocol?
Explain simple Echo server?
What is Socket Programming?
What this function socketpair() does?
What this function socket() does?
What this function bind() does?
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