How can PHP developers ensure that parameters passed to a method are of a specific type?

To ensure that parameters passed to a method are of a specific type, PHP developers can use type declarations in the method signature. By specifying the type of parameter expected, PHP will automatically check if the passed parameter matches the specified type. If the passed parameter does not match the specified type, PHP will throw a TypeError.

function exampleMethod(int $param) {
    // Method implementation
}

// Calling the method with an integer parameter
exampleMethod(5);

// Calling the method with a string parameter will result in a TypeError
exampleMethod("invalid");