Can arguments be omitted in PHP functions even if defined in the prototype?

In PHP, arguments defined in the function prototype must be passed when calling the function. However, you can make arguments optional by assigning default values to them in the function prototype. This allows you to omit those arguments when calling the function, and the default values will be used instead. 

function greet($name = "Guest") {
    echo "Hello, $name!";
}

greet(); // Outputs: Hello, Guest!
greet("John"); // Outputs: Hello, John!

Keywords

PHP functions arguments prototype omission

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