What is the syntax for setting default values for function parameters in PHP?

In PHP, you can set default values for function parameters by assigning a default value directly in the function definition. This allows you to call the function without passing in a value for that parameter, in which case the default value will be used. This is useful when you want to provide a default value for an optional parameter. 

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

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

Keywords

PHP function parameters default values syntax programming.

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