What is the purpose of the \'...\' operator in PHP and how does it work with variadic functions?

Variadic Functions in PHP: Understanding the Three Dots Operator

While working with PHP, you may encounter the ... operator. This operator plays a crucial role in defining and using variable argument lists, a technique commonly used in programming.

The ... operator, also known as the spread or splat operator in other languages, functions as a way to collect an indefinite number of arguments and pass them to a function. It achieves this by combining the rest of the function arguments into a single array.

To further illustrate, let's break down the code that you provided:

return new $type(...array_values($args));

In this example, the ... operator is applied to the $args array. This means that the function can accept multiple arguments, which will be captured in the $args array. The array_values function ensures that any keys are removed from the array. Finally, the spread operator places the array of values as a single argument list, allowing them to be used as needed within the function.

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